Education Archives – St Louis Brewminati https://stlbrewminati.com/category/education/ Changing The World One Keg At A Time Tue, 01 Nov 2022 17:20:14 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://i0.wp.com/stlbrewminati.com/wp-content/uploads/2020/12/image.jpg?fit=32%2C32&ssl=1 Education Archives – St Louis Brewminati https://stlbrewminati.com/category/education/ 32 32 185014158 Intro To Brewing With Spices https://stlbrewminati.com/2022/02/06/intro-to-brewing-with-spices/ Sun, 06 Feb 2022 15:04:57 +0000 https://stlbrewminati.com/?p=3067 A (Very) Brief History Of Spices In Beer Ever hear of a Gruit beer? Chances are good that you probably haven’t heard of them. Gruit beers are beers that are […]

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A (Very) Brief History Of Spices In Beer

Ever hear of a Gruit beer? Chances are good that you probably haven’t heard of them. Gruit beers are beers that are brewed without the addition of hops, or at least domesticated hops. For around 8,000 years, spices have been a part of the brewing process. Like hops, the infusion of wild and medicinal herbs provided flavor and bitterness to the beer as well as antiseptic properties to keep unwanted microorganisms at bay. The use of hops in the brewing process is relatively new (within the last 1,000 years). While Rhineheitsgebot, the German Purity law first implemented in Bavaria, stipulated that hops be one of the only allowed ingredients since 1516, brewers in other regions have continued using many other spices and flavoring agents along with their grains and other fermentables until the 19th century. Unfortunately, Prohibition in the U.S. further erased elements of spice usage in the brewing process. Today, however, the use of spices in the brewing process is being revived and experiencing a bit of a renaissance. In many Belgian beer styles, the use of spices remained popular to this day, and spices are once again being used by many modern craft brewers.

Spice, The Variety Of Life

Some of the traditional spices used over the centuries include heather and gorse (in the highlands of Scotland); spruce needles (in England and the American colonies); juniper (in Northern Europe, particularly along the Baltic Sea); coriander and cumin seed (Belgium); woodruff (in Berliner Weissbiers) and yarrow, nettle, thyme, nutmeg, basil, and rosemary (in English and Irish country ales). The list of spices that have been historically used is probably as long and as varied as the history of brewing itself.

Today, ingredients such as licorice, anise, chili peppers, and orange peel can be found in commercially produced specialty beers, particularly as the American craft-brewing industry has followed homebrewers’ lead into more daring and innovative brewing.

Spicing It Up In The Brew Room

Let’s Get Spicy

Spoons with various spices

1. Mash It Up

Adding the spice to the mash, if you’re brewing with grain, provides a deep spice flavor; but usually no aroma at all. You would add the spice in with the grist or as a later addition to the mash as is often done with darker specialty grains.

2. Into The Boil

Adding the spice to the kettle, whether boiling malt extracts or boiling down your mash runoff, will extract some aroma along with the flavors. The longer the spice is in the boil, the less its aromatics will remain, just like hops.

3. Dry Spicing

Spices can be added as “dry hops.” Depending on your style, this means adding the spice in the last two minutes of the boil, at kettle knockout (when you turn off the heat to stop the boil), or in the fermenter (primary or secondary). This will not add as much flavor as the first two uses, but the aromatic qualities of the spice will be better preserved.


A word of caution here: Large pieces of spices or fruits can potentially clog your airlock or blowoff tube. The vast majority of spices used for brewing purposes can (and probably should) be crushed or ground, regardless of when you plan to add them during your brewing process. You’ll always get more flavor from freshly ground spices than from either whole or commercially pre-ground spices.

4. Tinctures and Tistanes

Much attention has recently been given to the idea of tinctures and tistanes when using spices. For delicate spices, these are a great methods, but does require some forethought. For more on tinctures and tistanes, see the section titled “Tinctures And Tistanes And Titrations, Oh My!”

5. Of Liqueurs and Syrups

Another option, although limited by availability and price, is the use of liqueurs and syrups in lieu of priming sugar. This is more applicable with fruit flavorings, but there are a few herbed liqueurs or syrups that make for an interesting combination.


Exercise caution when going this route as you will need to figure out just how much sugar is in the liqueur (by its specific gravity, more or less). It will also add slightly to the alcohol content of your beer. Typically, a 12- to 15-ounce bottle of liqueur will need about 1/4 cup more priming sugar to adequately prime five gallons of beer and may well crank up your ABV by 1 – 1.5%.

It’s Gettin’ Spicy In Here

A variety of spices in bins

Kettle Additions

Spices used for kettle flavorings are usually added during the last five minutes of the boil or during a hot whirlpool. That helps to preserve the spice’s flavor and aroma. The big question with this method is how much to add. Since you can’t taste the spice’s effect, it’s probably best to go a little lighter than you think it should be. If you’re using strongly flavored spices, extra caution is needed. You don’t want to cross the line from “that’s a nice lavender flavor ” to “all I taste is grandma’s soap!” Adding spices to the boil kettle will involve some trial and error. This is where good note taking is really important!

So which spices work well being added to the kettle? Cinnamon or peppercorns are two great choice for the kettle. Resinous spices like rosemary also work well with heat extraction. While not a spice, fruit zest, like orange, lemon, or lime, are often added to the kettle; but those depend on what kind of fruit character you want in the finished beer. Putting the zest in the kettle will give you a more integrated, but muted, flavor and aroma than adding them to the fermenter.

Fermenter Additions

For a more forward/intense flavor or aroma, adding spices to a secondary fermenter is the way to go. Even if you don’t use secondary fermenters, adding flavorings is one place where it’s warranted. While you could put the spices directly in the primary, if crushed spices are not bagged and suspended they can end up sinking to the bottom and getting covered in trub which will limit the effectiveness. Adding in tinctures or tistanes to the secondary is another way to add the flavors of the spices to the beer without having to worry about keeping the crushed spice pieces from being picked up during packaging. When adding a tincture that used a liqueur with residual sugar, it’s important to factor in the likelihood that the additional sugar will likely kick up a new fermentation and give yourself some fermenter space. The renewed fermentation will also scavenge oxygen that may have been picked up when you transferred to secondary.

Packaging Additions

Packaging is probably the best time to add flavorings that you’ve created from tinctures and tistanes. Liquid flavorings work best at this stage since additives like coffee, vanilla, or liquor are easy to dose at packaging. Not only do you get the most intense flavor and aroma that way, but you also have the advantage of adding them to suit your own taste. You can avoid playing the guessing game of how much to use by using the titration method and then scaling up for your finished batch size. Just note that if the flavoring contains sugar and you are bottling, the additional sugar should be calculated in with your priming sugar.

Tinctures and Tistanes and Titrations, Oh My!

Tinctures Vs Tistanes

Simply put, a tincture is an extract typically made using vodka or another neutral grain alcohol while a tisane is an extract made using boiling water. The use of tinctures and tistanes can allow you to consistently dial in your flavor from one batch to the next.

The process for making a tincture is easy, but does require that you plan ahead. A general starting point is to begin with 4 oz. of a clean neutral spirit in a sealable vessel (like a mason jar), then roughly crush an ounce of your desired flavoring and mix into the spirit. Allow it to steep for at least one week and give it a shake at least once or twice a day to speed up the extraction process. You can make a tincture faster through the use of a sous vide immersion circulator and heating a water bath to 130–135 °F. You would place your vodka and spice mixture into small mason jars, then dunk them in the bath and cook for 4–6 hours. The heat help drives the extraction to create an intense extract in a relatively short period of time. Changing up the spirits used for the tincture can create different characteristics as well. Rum and Bourbon, in particular, can be used to make some really interesting tinctures.

While tinctures pull most of the essential oils from the target spice, they can miss other flavors. This is where tistanes can come in handy. Tistanes can pull out other essential oils that may not be pulled out by a tincture. To make a tistane, you would typically bring 6 oz. of water to a boil and then add roughly an ounce of your crushed spice. Let cool and then filter the spice out.

Cinnamon is a perfect example of how tinctures and tistanes can bring out different qualities of the same spice. If you were to make both a tincture and tistane, then taste the two side by side, you’d easily notice an immense difference between the two. The tincture pushes cinnamon heat and burn of cinnamaldehyde (that intense nose searing, taste bud tingling sensation – often associated with a fresh bottle of Fireball). The tistane on the other hand is softer and earthier, with more woody notes. Blending the tincture and tistane together actually presents the whole flavor we expect from cinnamon (also known as cassia).

To Titrate Or Not To Titrate

Titration is simply figuring out how much flavoring to put into a beer post-fermentation. Sure, you can guess how much flavoring to add, but you’d be hard pressed to recreate that same beer again if you really liked it. Titration is a straightforward process and can be a lot of fun as well! There’s a few things you’ll want to have on hand to start with: a small measuring cup, pipettes (or a syringe with measurement markings for this non-mad scientist types), and a small spoon or some other device to mix with. To start your titration, pour a 4 oz. sample of the finished beer (ideally you’d do this into four or more containers at the same time to sample each titration side by side to determine which you like best). Then add a different, measured amount of flavoring to each glass and taste. When you decide which titration you like best, you’d simply scale that amount up to the batch size (Oh no, math)!

Here’s a quick look at a 4 sample titration:
Glass 1: 4 oz. of beer, 1 mL of flavoring
Glass 2: 4 oz. of beer, 2 mL of flavoring
Glass 3: 4 oz. of beer, 4 mL of flavoring
Glass 4: 4 oz. of beer, 6 mL of flavoring

If, using the example to the left, you decide that Glass 2 is the taste you want, you now know that you’ll need 0.5 mL of flavoring per ounce of beer left. If you had 5 gallons remaining (640 oz., you’d need 320 mL (640 oz. X 0.5 mL) of flavoring to achieve the same flavor as the trial titration.
See! That’s easier than you thought it’d be, right?

You Feelin’ Spicy Yet?

Some General Guidelines for Brewing with Selected Herbs and Spices

Below is a quick overview of some herbs and spices commonly used in brewing, along with some suggestions on how you can incorporate them into your beers. Don’t forget to do your own personal experimentation too!

Herbs (Not That Kind, Well, Maybe)

A good general starting point for adding herbs to beer is to start by adding 1 oz to the secondary per 5 gallons. Be sure to remove all traces of the stem as it may contribute a vegetable character to the beer. Wash the herbs in a salad spinner, but do not boil them. When considering adding herbs to your beer, look to add varieties of herbs that complement the beer. The Italian large-leaf varieties of basil, for example, are no good in beer. Thai or Mexican spices are better choices as they have a citrus component that marries well with honey and Cascade hops. Avoid green coriander berries, unless you want a very intense coriander flavor. Fresh herbs are better than dried and are the first choice in most cases.

Chilis (Crankin’ Up The Heat In Here)

Habanero, Serrano, and Jalapeno chilis work well in beers. Before adding to the fermenter, cut the chilis in half lengthwise, then put them in a colander and pour boiling water over them to sanitize. The chilis should not be cooked, but should remain crisp. As many as 50 chilis can be placed in a secondary fermenter for a 5 gallon batch depending upon how hot the chilis are and how hot you want the beer. 50 chilis work out to about one chili per bottle. Bottle or rack after two weeks. This method gives good pepper flavor and not too much heat. For a hotter chili beer, either use more chilis or allow the beer to sit in the secondary longer than two weeks, tasting every week or so to monitor the heat.

Ginger (The Spice, Not The Redhead)

Ginger is best added to beer by steeping some ginger late in the boil and then adding fresh chopped ginger to the secondary. Be careful not to overdo it, though, as adding too much could result in an unpleasant hotness. For a mild ginger taste, try using two quarter-sized slices. For more pronounced flavor, use one “knob” of ginger. For immense, in-your-face flavor, use a ginger root about the size of your hand. One or two dried red chilis in a 5-gallon batch can make a nice complement to the ginger hotness.

Other Various Spices (So Much Spice, So Little Time)

Many other spices can be used in the brewing process. Saffron, dried red chilis, or Mexican cinnamon (known as canela) work well with homemade cider and perry in particular. Add them in an infusion by putting the spices in a 3-in. tea infuser ball to make a tistane and putting the resulting tea and the spice ball in the secondary. Some spices are easy to overdo in beer. When using the following spices, keep them to a very small amount (say ½ tsp or less): allspice, cloves, cardamom, cinnamon stick. It’s important to remember that you can always add more to increase the strength of the flavors, but you can’t subtract back if the flavor is too strong.

Looking To Take This Offline?

Missed out on the meeting where we talked about using spices while brewing? Want to access this information offline? You can download or print out the handout that was distributed at our meeting.

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Belgian Witbier Style https://stlbrewminati.com/2022/01/05/belgian-witbier-style/ Thu, 06 Jan 2022 03:08:17 +0000 https://stlbrewminati.com/?p=3047 An Overview of the Style The Belgian Witbier style dates back hundreds of years, but the Witbier fell into relative obscurity until it was revived by Belgian brewer Pierre Celis […]

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An Overview of the Style

The Belgian Witbier style dates back hundreds of years, but the Witbier fell into relative obscurity until it was revived by Belgian brewer Pierre Celis in the 1960s. The style is currently enjoying a renaissance, especially in the American market. Witbier, “Wit”meaning “white”, pays homage, even today, to a history of Belgian beers abounding in the use of other herbs.

2015 BJCP Style Guidelines (Witbier – 24A)

OG 1.044 – 1.052
FG 1.008 – 1.012
ABV 4.5% – 5.5%
IBU 8 – 20
SRM 2 – 4
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
Very pale straw to very light gold in color. The beer will be very cloudy from starch haze and/or yeast, which gives it a milky, whitish-yellow appearance. Dense, white, moussy head. Head retention should be quite good.
Moderate malty sweetness (often with light notes of honey and/or vanilla) with light, grainy, spicy wheat aromatics, often with a bit of tartness. Moderate perfumy coriander, often with a complex herbal, spicy, or peppery note in the background. Moderate zesty, citrusy-orangey fruitiness. A low spicy-herbal hop aroma is optional, but should never overpower the other characteristics. Vegetal, celery-like, or ham-like aromas are inappropriate. Spices should blend in with fruity, floral and sweet aromas and should not be overly strong.
Pleasant malty-sweet grain flavor (often with a honey and/or vanilla character) and a zesty, orange-citrusy fruitiness. Refreshingly crisp with a dry, often tart, finish. Can have a low bready wheat flavor. Optionally has a very light lactic-tasting sourness. Herbal-spicy flavors, which may include coriander and other spices, are common should be subtle and balanced, not overpowering. A spicy-earthy hop flavor is low to none, and if noticeable, never gets in the way of the spices. Hop bitterness is low to medium-low, and doesn’t interfere with refreshing flavors of fruit and spice, nor does it persist into the finish. Bitterness from orange pith should not be present. Vegetal, celery-like, ham-like, or soapy flavors are inappropriate.
Medium-light to medium body, often having a smoothness and light creaminess from unmalted wheat and the occasional oats. Despite body and creaminess, finishes dry and often a bit tart. Effervescent character from high carbonation. Refreshing, from carbonation, light acidity, and lack of bitterness in finish. No harshness or astringency from orange pith. Should not be overly dry and thin, nor should it be thick and heavy.
About 50% unmalted wheat and 50% pale barley malt (usually Pils malt) constitute the grist. In some versions, up to 5-10% raw oats may be used. Spices of freshly-ground coriander and Curaçao or sometimes sweet orange peel complement the sweet aroma and are quite characteristic. Other spices (e.g., chamomile, cumin, cinnamon, Grains of Paradise) may be used for complexity but are much less prominent. Ale yeast prone to the production of mild, spicy flavors is very characteristic. In some instances a very limited lactic fermentation, or the actual addition of lactic acid, is done.

Educational Material For The Belgian Witbier Style

Did you miss getting the handout from our meeting where we discussed the Belgian Witbier style? Download it now or print it out.

Sample Belgian Witbier Recipe

Our March competition is for the Belgian Witbier style. To help you create your own Belgian Witbier recipe, we’ve included a sample recipe as a starting point for those who aren’t sure where to start. This recipe was the 2006 NHC gold medal winner.

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Wee Heavy Scottish Ale Style https://stlbrewminati.com/2021/10/06/wee-heavy-scottish-ale-style/ Wed, 06 Oct 2021 23:00:00 +0000 https://stlbrewminati.com/?p=3025 An Overview of the Style The Wee Heavy Scottish Ale style (not to be confused with the Scottish Heavy style) is a complex beer characterized by substantial malt-influenced flavors. Originating […]

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An Overview of the Style

The Wee Heavy Scottish Ale style (not to be confused with the Scottish Heavy style) is a complex beer characterized by substantial malt-influenced flavors. Originating in Scotland, this style is traditionally served in small, or wee, measures due to it’s strong ABV which ranges from 6.5% to 10.0%. The flavors of the Wee Heavy Scottish Ale style come from high mash temperatures and kettle caramelization rather than from the use of crystal malts.

2015 BJCP Style Guidelines (Wee Heavy Ale – 17C)

OG 1.070 – 1.130
FG 1.018 – 1.040
ABV 6.5% – 10.0%
IBU 17 – 35
SRM 17 – 35
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
Clear, light copper to dark brown color, often with deep ruby highlights. Usually has a large tan head, which may not persist. Legs may be evident in stronger versions.
Deeply malty, with a strong caramel component. Lightly smoky secondary aromas may also be present, adding complexity; peat smoke is inappropriate. Diacetyl should be low to none. Low to moderate esters and alcohol are often present in stronger versions. Hops are very low to none, and can be slightly earthy or floral.
Richly malty with significant caramel (particularly in stronger versions). Hints of roasted malt may be present (sometimes perceived as a faint smoke character), as may some nutty character, all of which may last into the finish. Peat smoke is inappropriate. Hop flavors and bitterness are low to medium-low, so the malt presence should dominate the balance. Diacetyl should be low to none. Low to moderate esters and alcohol are usually present. Esters may suggest plums, raisins or dried fruit. The palate is usually full and sweet, but the finish may be sweet to medium-dry, sometimes with a light roasty-grainy note.
Medium-full to full-bodied, with some versions (but not all) having a thick, chewy viscosity. A smooth, alcoholic warmth is usually present and is quite welcome since it balances the malty sweetness. Moderate carbonation.
Well-modified pale malt, with roasted barley for color. May use some crystal malt for color adjustment. Slight smoke character may be present in some versions, but derives from roasted grains or from the boil. Peated malt is absolutely not traditional.

Educational Material For The Wee Heavy Scottish Ale Style

Did you miss getting the handout from our meeting where we discussed the Wee Heavy Scottish Ale style? Download it now or print it out.

Sample Wee Heavy Scottish Ale Recipe

Our December competition is for the Wee Heavy Scottish Ale style. To help you create your own Wee Heavy Scottish Ale recipe, we’ve included a sample recipe as a starting point for those who aren’t sure where to start. This recipe was featured in the July/August 2017 Zymurgy magazine issue.

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American Amber Ale Style https://stlbrewminati.com/2021/07/07/american-amber-ale-style/ Wed, 07 Jul 2021 22:00:00 +0000 https://stlbrewminati.com/?p=2976 An Overview of the Style The American Amber Ale style is a modern American craft beer style developed as a variation from American Pale Ales. The American Amber Ale style […]

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An Overview of the Style

The American Amber Ale style is a modern American craft beer style developed as a variation from American Pale Ales. The American Amber Ale style can overlap in color with darker American pale ales, but with a different malt flavor and balance. Some regional variations exist with some of them being fairly mainstream and others being quite aggressive in hopping. Stronger and more bitter versions are now split into the Red IPA style.

2015 BJCP Style Guidelines (American Amber Ale – 19A)

OG 1.045 – 1.060
FG 1.010 – 1.015
ABV 4.5% – 6.2%
IBU 25 – 40
SRM 10 – 17
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
Amber to coppery-brown in color. Moderately large off-white head with good retention. Generally quite clear, although dry-hopped versions may be slightly hazy.
Low to moderate hop aroma with characteristics typical of American or New World hop varieties (citrus, floral, pine, resinous, spicy, tropical fruit, stone fruit, berry, or melon). A citrusy hop character is common, but not required. Moderately-low to moderately-high maltiness (usually with a moderate caramel character), which can either support, balance, or sometimes mask the hop presentation. Esters vary from moderate to none.
Moderate to high hop flavor with characteristics typical of American or New World hop varieties (citrus, floral, pine, resinous, spicy, tropical fruit, stone fruit, berry, or melon). A citrusy hop character is common, but not required. Malt flavors are moderate to strong, and usually show an initial malty sweetness followed by a moderate caramel flavor (and sometimes other character malts in lesser amounts). Malt and hop bitterness are usually balanced and mutually supportive, but can vary either way. Fruity esters can be moderate to none. Caramel sweetness and hop flavor/bitterness can linger somewhat into the medium to full finish.
Medium to medium-full body. Medium to high carbonation. Overall smooth finish without astringency. Stronger versions may have a slight alcohol warmth.
Pale ale malt, typically North American two-row. Medium to dark crystal malts. May also contain specialty grains which add additional character and uniqueness. American or New World hops, often with citrusy flavors, are common but others may also be used.

Educational Material For The American Amber Ale Style

Did you miss getting the handout from our meeting where we discussed the American Amber Ale style? Download it now or print it out.

Sample American Amber Ale Recipe

Our September competition is for the American Amber Ale style. To help you create your own American Amber Ale recipe, we’ve included a sample recipe as a starting point for those who aren’t sure where to start. Amber Waves of Grain was a 2011 AHA National Homebrew Competition medal winner.

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American Lager Style https://stlbrewminati.com/2021/04/14/american-lager-style/ Wed, 14 Apr 2021 23:24:59 +0000 https://stlbrewminati.com/?p=2958 An Overview of the Style The American Lager style is a beer brewed to be a thirst quenching and refreshing beverage with a flavor and aroma that’s barely there. There’s […]

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An Overview of the Style

The American Lager style is a beer brewed to be a thirst quenching and refreshing beverage with a flavor and aroma that’s barely there. There’s a remarkable amount of skill in making a consistently thirst-quenching American Lager. There’s not an abundance of any flavor – hops, malt, water, alcohol – so any flavor that’s accidentally introduced, either by contamination or fermentation controls, is magnified and screams failure. Your ingredients, process, yeast viability, and your fermentation control all matter. Nothing will test your skills as a brewer more than brewing a clean American Lager.

2015 BJCP Style Guidelines (American Lager – 1B)

OG 1.040 – 1.050
FG 1.004 – 1.010
ABV 4.2% – 5.3%
IBU 8 – 18
SRM 2 – 4
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
Very pale straw to medium yellow color. A white, frothy head that seldom persits. Very clear.
Low to no malt aroma, although it can be perceived as grainy, sweet, or corn-like if present. Hop aroma may range from none to a light, spicy, or floarl hop presence. While a clean fermentation character is desireable, a light amount of yeast character (particularly a light apple character) is not a fault. Light DMS is also not a fault..
Relatively neutral palate with a crisp and dry finish
and a moderately-low to low grainy or corn-like flavor that might be perceived as sweetness due to the low bitterness. Hop flavor ranges from none to moderately-low levels, and can have a floral, spicy, or herbal quality (although often not strong enough to distinguish). Hop bitterness at low to medium-low level. Balance may vary from slightly malty to slightly bitter, but is relatively close to even. High levels of carbonation may accentuate the crispness of the dry finish. Clean lager fermentation character.
: Low to medium-low body. Very highly carbonated with slight carbonic bite on the tongue.
Two- or six-row barley with high percentage (up to 40%) of rice or corn as adjuncts.

Educational Material For The American Lager Style

Did you miss getting the handout from our meeting where we discussed the American Lager style? Download it now or print it out.

Sample American Lager Recipe

Our June competition is for the American Lager style. To help you create your own American Lager recipe, we’ve included a sample recipe as a starting point for those who aren’t sure where to start. Champagne Lager was a 2006 AHA National Homebrew Competition medal winner.

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Black IPA Style https://stlbrewminati.com/2020/12/28/black-ipa-style/ Tue, 29 Dec 2020 00:31:46 +0000 https://stlbrewminati.com/?p=2885 An Overview of the Style The Black IPA style, sometimes known as Cascadian Dark Ale (CDA) or American-Style Black Ale (ABA), is a variation of the American IPA style. It […]

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An Overview of the Style

The Black IPA style, sometimes known as Cascadian Dark Ale (CDA) or American-Style Black Ale (ABA), is a variation of the American IPA style. It was first commercially produced by Greg Noonan as Blackwatch IPA around 1990 and was popularized in the Pacific Northwest and Southern California. However, dark, strong, and hoppy beers aren’t a new thing as the brewing of ales with characteristics similar to those of the modern Black IPA style go back over a hundred years. Importantly, Black IPAs are more than just hoppy beers that are dark in color. The darker malts lend chocolate and roasted flavors that often work in contrast with the floral, citric and piney flavors of the hops.

2015 BJCP Style Guidelines (Specialty IPA: Black IPA – 21D)

OG 1.050 – 1.085
FG 1.010 – 1.018
ABV 5.5% – 9.0%
IBU 50 – 90
SRM 25 – 40
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
The color ranges from dark brown to black. It should be clear, although unfiltered dry-hopped versions may be a bit hazy; if opaque. It should not be murky. It will have a good head stand with a light tan to tan color that persists.
A moderate to high hop aroma, often with a stone fruit, tropical, citrusy, resinous, piney, berry, or melon character. If dry hopped, can have an additional floral, herbal, or grassy aroma, although this is not required. Very low to moderate dark malt aroma, which can optionally include light chocolate, coffee, or toast notes. Some clean or lightly caramelly, malty sweetness may be found in the background. Fruitiness, either from esters or from hops, may also be detected in some versions, although a neutral fermentation character is also acceptable.
Medium-low to high hop flavor with tropical, stone fruit, melon, citrusy, berry, piney or resinous aspects. Medium-high to very high hop bitterness, although dark malts may contribute to the perceived bitterness. The base malt flavor is generally clean and of low to medium intensity, and can optionally have low caramel or toffee flavors. Dark malt flavors are low to medium-low; restrained chocolate or coffee flavors may be present, but the roasted notes should not be intense, ashy, or burnt, and should not clash with the hops. Low to moderate fruitiness (from yeast or hops) is acceptable but not required. Dry to slightly off-dry finish. The finish may include a light roast character that contributes to perceived dryness, although this is not required. The bitterness may linger into the aftertaste but should not be harsh. Some clean alcohol flavor can be noted in stronger versions.
Smooth, medium-light to medium-bodied mouthfeel without significant hop- or (especially) roasted malt-derived astringency. Dry-hopped versions may be a bit resiny. Medium carbonation. A bit of creaminess may be present, but is not required. Some smooth alcohol warming can and should be sensed in stronger (but not all) versions.
Debittered roast malts for color and some flavor without harshness and burnt qualities; American or New World hop varieties that don’t clash with roasted malts. Hop characteristics cited are typical of these type of hops; others characteristics are possible, particularly if derived from newer varietals.

Educational Material For The Black IPA Style

Did you miss getting the handout from our meeting where we discussed the Black IPA style? Download it now or print it out.

Sample Black IPA Recipe

Our March competition is for the Black IPA style. To help you create your own Black IPA recipe, we’ve included a sample recipe as a starting point for those who aren’t sure where to start. Urban UFO was a 2012 AHA National Homebrew Competition medal winner.

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Dunkelweizen – Yeast Pitch Rate Effects https://stlbrewminati.com/2020/11/11/dunkelweizen-yeast-pitch-rate-effects/ Thu, 12 Nov 2020 01:00:00 +0000 https://stlbrewminati.com/?p=2636 Manipulating the pitching rate of the Weihenstephan Weizen yeast strain can alter the balance of esters and phenolics. It's important to know how this is achieved if you are trying to make one dominant over the other.

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Yeast Pitch Rate Effects on the Dunkelweizen Style

The Wyeast 3068 – Weihenstephan Weizen yeast strain is the classic Hefeweizen yeast strain. It is also one of the most popular German wheat beer strains used worldwide. The Weihenstephan Weizen yeast strain is typically used in the production of Hefeweizens, Dunkelweizens, and Roggenbiers. This yeast strain produces a balance of banana esters and clove phenolics. Manipulating the balance towards either ester production or phenolics production can be done with an easy trick. That trick? Change your yeast pitch rate. In this post, we’ll explore how to change the pitch rate and the effects that under- and over-pitching the yeast will have on the finished beer.

Some Quick Background Information On Wyeast 3068

Before we look at the effects of under- and over-pitching, there are a two things to know about this yeast strain. First, the Weihenstephan Weizen yeast strain often produces a sulfur aroma during fermentation. With some conditioning, the sulfur aroma will clear out. Second, this yeast strain will also remain in suspension for an extended period of time following attenuation. For truly clear beer, filtering is required; however, filtering can also reduce the amount of esters and phenolics in the finished beer.

How to Change the Yeast Pitch Rate

According to Wyeast, the typical pitch rate for the Weihenstephan Weizen yeast strain (Wyeast 3068) is 125 ml of yeast slurry and nutrient to a 5 gallon batch of wort. Decreasing that amount will under-pitch, while increasing that amount will result in over-pitching. Depending upon just how much you under- or over-pitch, the effects will range from subtle to drastic. The extreme ends of under- or over-pitching could potentially result in flaws with the finished beer or even worse issues.

The Effects of Under-Pitching and Over-Pitching

Understanding the effects of the yeast pitch rate on the Dunkelweizen style will allow you to tailor the finished beer to your desired tastes.

Under-Pitching
Increasing The Ester Production (Banana)

Decreasing the pitch rate will contribute to increased ester production, yielding more banana notes to the beer. You can achieve additional ester production by increasing the fermentation temperature and increasing the wort density (wort density = specific gravity).

Concerns When Under-Pitching

A low pitch rate can lead to:
– Excess levels of diacetyl
– Increase in higher/fusel alcohol formation
– Increase in ester formation
– Increase in volatile sulfur compounds
– High terminal (finishing) gravities
– Stuck fermentations
– Increase risk of infection

Over-Pitching
Increasing The Phenolics Production (Clove)

Increasing the pitch rate will contribute to increased phenolics production. This can result in a near complete loss of banana character. Decreasing the ester level will allow a higher clove character to be perceived.

Concerns When Over-Pitching

A high pitch rate can lead to:
– Very low ester production
– Very fast fermentations
– Thin or lacking body/mouthfeel
– Autolysis (Yeasty flavors due to lysing of yeast cells)

Dunkelweizen Yeast Pitch Rate Educational Material

Keep the handout readily available for the next time you brew a Dunkelweizen and you are looking to manipulate the esters and phenolics in your Dunkelweizen.

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German-Style Dunkelweizen https://stlbrewminati.com/2020/10/10/german-style-dunkelweizen/ Sat, 10 Oct 2020 05:30:00 +0000 https://stlbrewminati.com/?p=2622 An Overview Of The German-Style Dunkelweizen The German-style Dunkelweizen can be considered a cross between a German-style Dunkel and a Hefeweizen. It is distinguished by its sweet maltiness and slight […]

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An Overview Of The German-Style Dunkelweizen

The German-style Dunkelweizen can be considered a cross between a German-style Dunkel and a Hefeweizen. It is distinguished by its sweet maltiness and slight chocolate-like character. A Dunkelweizen is balanced against the banana esters and clove phenolics from the weizen ale yeast. Dunkelweizens are highly carbonated and refreshing, with a creamy, fluffy texture and light finish that encourages drinking.

2015 BJCP Style Guidelines (Dunkeles Weissbeer – 10B)

OG 1.044 – 1.056
FG 1.010 – 1.014
ABV 4.3% – 5.6%
IBU 10 – 18
SRM 14 – 23
AppearanceAromaFlavorMouthfeelCharacteristic Ingredients
Light copper to mahogany brown in color. A very thick, moussy, long-lasting off-white head is characteristic. May be hazy due to the high protein content of wheat in this traditionally unfiltered style, alothough the level of haze is somewhat variable. Suspended yeast sediment can contribute to cloudiness.
Moderate phenols (usually clove) and fruity esters (usually banana). The balance and intensity of the phenol and ester components can vary, but the best examples are reasonably balanced. Optionally, a low to moderate vanilla character and/or faint bubblegum notes may be present, but should not dominate. Hop aroma ranges from low to none, and may be lightly floral, spicy, or herbal. A light to moderate wheat aroma (which might be perceived as bready, doughy, or grainy) may be present and is often accompanied by a caramel, bread crust, or richer malt aroma. The malt aroma may moderate the phenols and esters somewhat.
Low to moderately strong banana and clove flavor. The balance and intensity of the phenol and ester components can vary, but the best examples are reasonably balanced and fairly prominent. Optionally, a very light to moderate vanilla character and/or faint bubblegum notes can accentuate the banana flavor, sweetness, and roundness; neither should be dominant if present. The soft, somewhat bready, doughy, or grainy flavor of wheat is complimentary, as is a richer caramel, toast, or bread crust flavor. The malty richness can be low to medium-high, and supports the yeast character. A roasted malt characteristic is inappropriate. A spicy, herbal, or floral hop flavor is low to none, and hop bitterness is very low to low. Well-rounded, flavorful, often somewhat malty palate with a relatively dry finish.
Medium-light to medium-full body. The texture of wheat as well as yeast in suspension, imparts the sensation of a fluffy, creamy fullness that may progress to a lighter finish, aided by moderate to high carbonation effervescent.
By German brewing tradition, at least 50% of the grist must be malted wheat, although some versions use up to 70%; the remainder is usually Munich, Vienna, or dark or caramel wheat malts, or pilsner malt with color malt. A decoction mash is traditional, but infrequently used today. Weizen ale yeasts produce the typical spicy and fruity character, although extreme fermentation temperatures can effect the balance and produce off-flavors.

Educational Material For The German-style Dunkelweizen

Did you miss getting the handout from our meeting where we discussed the German-style Dunkelweizen? Download it now or print it out.

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Off Flavors In Beer https://stlbrewminati.com/2020/03/10/off-flavors-in-beer/ Tue, 10 Mar 2020 09:35:46 +0000 https://stlbrewminati.com/?p=2595 Learn more about 6 common off flavors in beer and how to control or prevent them.

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What Causes Certain Off Flavors & How To Prevent Them

Every beer is made up of a complexity of flavors and everyone perceives this flavor-makeup differently. You may find you really enjoy a certain beer, while another person may find that same beer to be awful tasting. Each individual has higher sensitivities to certain flavors, creating a unique standard of what is found to be pleasant or abhorrent. In general, there is a set of flavors that are considered “off” or faulty when found at a certain level (or any level) in beer. Some of these flavors are present in almost all beer to some degree and considered an “on” flavor except when its level gets too high for a given style (fruity esters). Other off-flavors are less frequently found, but still are appropriate in small quantities in specific styles (a buttery flavor in some lagers). Then there are those that are never appropriate no matter their level or the beer style (baby vomit). Learning to recognize, then control, or eliminate these off-flavors appropriately takes time and practice.

It is important to know that cause and control of flavors go hand in hand. Once you have learned what causes a given off flavor in your beer you can better manage your brew day and beer handling to either control or eliminate the cause. The causes of different flavors should be purposely taken into consideration and accounted for by the brewer at the very least in the broad picture of things. Since half of brewing is art, any accidental flavors are “off”, at least until the brewer decides they’re not.

Some off flavors, especially those resulting from contamination, are almost always going to be considered faulty. These off flavors are usually caused by poor sanitation and, less often, by poor brewing practices. Any off flavors not arising from contamination are always a result of your brewing practice, such as uncontrolled fermentation temperatures, waiting too long to rack to a secondary, weak boils, poor bottling technique, or simply choosing the wrong yeast.

Common Off Flavors

There are many different off flavors, but we are going to focus on 6 of the more common off flavors: Contamination, D.M.S., Diacetyl, Isovaleric Acid, Papery, and H2S. We will take a closer look below at what causes those off flavors, how you can detect them, and how to prevent them.

Contamination
Flavor Description Common Sources/Causes How To Avoid/Control
Sour and Buttery, Tart, Citrusy, Peppery/Burning Mouthfeel

(All beers are acidic to some degree, but it becomes an off flavor if it is at too high a level overall or too high for a given style. Sourness at different levels can be appropriate to dry stouts, Belgian sours, Berliner weisse, Fruit beers, Goses, Witbier, and Wild Ales.)

• Any perceived sourness is due to added acids in the form of raw materials (i.e. fruit), fermentation, and/or bacterial contamination or inoculation.
• Yeast contributes some natural acids during fermentation. It can also be caused by certain brewing practices.
• Practice proper sanitation.
• Choose a yeast strain appropriate to the style.
• Don’t mash for longer than two hours.
• Pitch the right amount of healthy yeast to minimize lag time.
• Avoid high temperature fermentations.
• Don’t contaminate your siphon by sucking to start the flow, instead use an auto-siphon.
• Replace plastic brewing supplies and equipment, especially fermentors, when they become scratched as scratches can hide bacteria. (Alternatively, use glass carboys or stainless steel.)
• Limit acidic fruit and additions of acidulated malt and lactic acid.
• If sour mashing, avoid oxygenating and keep it above 130°F.
D.M.S.
Flavor Description Common Sources/Causes How To Avoid/Control
Cooked/Creamed Corn, Cabbage, Cooked/Canned Vegetables

(Considered an off flavor in most beer, but can play some role in the flavor profile of some pale lagers, German and American pilsners, and cream ales.)

• DMS comes from a sulfur-based organic compound (S-methyl methionine, or SMM) which is produced when grain germinates during the malting process. (Six row lager malts and Pilsner malts have the highest levels of this compound. As do some adjunct grains such as corn.) SMM changes to DMS during the boil.
• It can also come from wild yeast or bacterial contamination during fermentation.

(May decrease with aging.)

• Reduce use of pilsner malts, lager malts, and corn adjuncts.
• Higher moisture content in malt increases the SMM, so make sure you store your malt in a dry, cool place.
• Over-sparging can increase DMS.
• DMS is a volatile compound and the easiest way to get rid of it is to drive it off with a vigorous boil. Always use a big enough kettle to allow for an energetic boil without having to worry about boil over. And always leave the lid off!
• Ensure your vigorous boil is long enough. Boil for at least 60 minutes and, if using lager or pilsner malt, consider upping it to 90 minutes.
• Also try your best to crash cool your boiled wort as quickly as possible. DMS is produced at warm non-boiling temperatures, so you don’t want to leave your wort in that temperature-range long.
• As always, practice good sanitation.
Diacetyl (2,3-Butanedione)
Flavor Description Common Sources/Causes How To Avoid/Control
Butter, Butterscotch, Milky, Oily

(It is usually considered an off flavor, but is appropriate at low levels in some styles, including English Bitters, Scotch Ales, Dry Stouts, and Czech Pilsner to name a few.)

• It is produced by all yeast during fermentation, but is usually reabsorbed by the yeast cells.
• Non-reabsorption or over production is caused by feeble or short boiling, low temperatures during fermentation, mutated yeast, or racking too soon. It can also be formed by bacteria contamination.

(Diacetyl can become more pronounced over time in packaged beer that has the precursor of diacetyl, alpha acetolactate. As the alpha acetolactate breaks down it forms diacetyl. Heat accelerates this breakdown.)

• Always boil vigorously for the appropriate amount of time.
• Aerate your fermentation well when you cast your yeast and avoid oxygenating the wort further once fermentation has begun.
• Up your temperature slightly as you near the end of fermentation as this helps the yeast reabsorb diacetyl.
• Don’t be too quick to rack your young beer off the yeast to ensure the yeast is done doing their work before you move your beer off of the yeast.
Isovaleric Acid
Flavor Description Common Sources/Causes How To Avoid/Control
Cheesy, Old Hops, Sweaty Socks

(Is sometimes a component of some highly hopped beer styles, but in general is considered an off flavor.)

• A result of oxidation of the alpha acids in hops and may be confused as being caprylic, another off flavor. If associated with alpha acids, it is often accompanied by grassy notes, but it can also be caused by bacterial infection.

(Will mellow with age.)

• Use fresh hops and ensure you buy fresh hops that have been stored correctly.
• Store hops in a freezer in a oxygen free, vacuum sealed container or bag.
• Age beer that has cheesy notes to help mellow those flavors.
• Use good sanitation practices.
Papery
Flavor Description Common Sources/Causes How To Avoid/Control
Cardboard, Oxidized, Old Book

(This is a flavor associated with the aging process of beer. What qualities it takes on depends on the style of beer and what temperature the beer is stored at. Some flavors associated with oxidation are important components of an aged beer’s profile, others, are always considered off flavors.)

• Oxidation is directly caused by aging. How fast and to what extent this process occurs is a result of oxygen conditions, storage temperatures, and a beer’s ingredients. The more oxygen a beer is in contact with the faster and more severe the oxidation. Cooler storage temperatures slow the process. There is a marked increase in oxidation as storage temperature increases. Ingredients used in the beer can both inhibit or aid oxidation.

(Oxidation characteristics are very fluid. Some flavors will increase; some will increase then decrease or level off.)

• Minimize aeration of hot wort by avoiding splashing, spraying, or vigorously stirring.
• Do not aerate beer after fermentation starts.
• Work to get good hot and cold break separation.
• Don’t leave more than 1 to 2 inches of head space when bottling.
• Use ant-oxidant bottle caps and cap on foam if possible.
• When possible, purge kegging equipment with CO2 before using.
• Keep beer below 50°F if cellaring.
• Don’t age beer unless it’s meant to be aged.
H2S
Flavor Description Common Sources/Causes How To Avoid/Control
Rotten Eggs, Sulfury, Sewer

(Small quantities can give freshness to beer, but it quickly becomes an off flavor as the quantity increases.)

• All yeast strains produce some amount of hydrogen sulphide during fermentation, but production can be increased when yeast are stressed.
• Other possible causes are bacterial infection and yeast autolysis.

(The quantity of H2S may increase with maturation after packaging.)

• Give your beer enough time. Ale fermentations are vigorous and much of the hydrogen sulphide is scrubbed out by released C02. Lager yeasts will produce more H2S and the fermentation tends to be much mellower. If a lager fermentation is done, but still smells sulfury chances are it needs some more maturation time before bottling.
• Select your yeast strain with care. Ensure you cast enough healthy yeast and oxygenate the wort well. Consider using a yeast nutrient to up the zinc content in the wort.
• Get the beer off of the yeast cake and into a secondary as soon as fermentation is complete.
• Ensure your sanitation practices are up to snuff so that you can take bacterial contamination off the list of possible causes.

Educational Material

Looking for a handy form that covers these off flavors? You can download the handout and save it for future reference or print it out to have on hand.

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Learn More About Brewing https://stlbrewminati.com/2015/08/28/learn-more-about-brewing/ Fri, 28 Aug 2015 00:25:00 +0000 https://stlbrewminati.com/?p=2530 Making great beer starts with knowledge about brewing. The best way to learn more about brewing is to browse through the educational material in our blog. The St Louis Brewminati […]

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Making great beer starts with knowledge about brewing. The best way to learn more about brewing is to browse through the educational material in our blog. The St Louis Brewminati have a variety of posts about brewing and the science behind it.

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