BrewTek Yeast

Until early 2003 or thereabouts, Brewers Resource was a great mail-order catalog source for beer and wine making supplies. (If you are interested in seeing Brewers Resource website from 2003 or earlier, you can use www.archive.org and the "wayback" machine function. Click here to go back to 2001 Brewers Resource webpages.) Brewers Resource was one of the only suppliers of unique brewing yeasts available on slants. They collected a wide variety of brewing yeasts from breweries all over the world and made them available to homebrewers as BrewTek numbered (CL-#) strains. I was lucky enough to get several of their numbered strains in 2001 before they closed. In early 2004, Brewsters Yeast (www.brewstersyeast.com) began to offer the BrewTek strains along with many others. I obtained a number of additional BrewTek strains from Brewsters in 2006. However in 2007 Brewsters Yeast also closed their operation. Currently there are two commercial sources for a few of the BrewTek yeast strains.  WYeast has started to carry CL-50 as WYeast-1450, Denny's Favorite 50. Brewing Science lists CL-50, CL-260, and CL-980 in it's catalog but only sells large amounts of yeast. This is unfortunate since the rest of these BrewTek strains yield wonderful beer as well.  Recently, East Coast Yeast has started to provide pitchable quantities of several of the Brewtek strains under their own East Coast Yeast (ECY) name. You should contact East Coast Yeast for further information.

I am attempting to collect and bank all of the BrewTek Yeast strains. If you are interested in how this is done, here's a page of links to yeast propagation and other yeast resources especially for homebrewers.

Below are listed the BrewTek Yeast strains along with their descriptions, and fermentation specs. These data were taken from the 2001 Brewers Resource webpage.
(Note: Those strain numbers listed in RED are currently in my yeast bank. I have located sources of those strain numbers listed in BLUE and hope to have them in hand in the next several months.  If you have any of the ones I am missing and are willing to trade or even sell me a slant, please email me. If you are a yeast rancher and desperately want one of the BrewTek strains I have, email me and ask about it. If I am not too busy I may respond positively. For all the strains in my Yeast Bank, look here. )

BrewTek Ale yeasts

CL-10 American Microbrewery Ale #1 A smooth, clean, strong fermenting ale yeast that will work all the way down to 56° F. The neutral character of this yeast makes it ideal for Cream Ales and other beers in which you want maintain a clean malt flavor.
CL-20 American Microbrewery Ale #2 CL-20 gives an accentuated, rich and creamy malt profile with detectable amounts of diacetyl. Use it for lower gravity beers where the malt character should not be missed or in Strong Ales for a robust character.
CL-50 California Pub Brewery Ale For that classic U.S. small brewery flavor. CL-50 produces terrific American red & pale ale styles. While attenuation is normal, this yeast produces a big, soft, well rounded malt flavor that really lets caramel malt flavors shine.
CL-110 British Microbrewery Ale Provides a complex, oaky, fruity ester profile and full flavored finish, suitable to low and medium gravity British ale styles. Very distinct, this classic, old fashioned yeast is great for traditional bitters and is a rare find for mild ale fans.
CL-120 British Pale Ale #1 This yeast produces a bold, estery character and accentuates mineral and hop flavors. The distinct flavor of this yeast makes it well suited for use in your best Burton Pale Ale or Bitter recipes.
CL-130 British Pale Ale #2 CL-130 is a smooth, full flavored ale yeast. Mildly estery, this yeast is smooth, well rounded and accentuates caramel and other malt nuances. It is a strong fermenter and is also good for strong or spiced ales.
CL-150 Britsh Real Ale For those longing for the character of a real pub bitter. This yeast has a complex, woody, almost musty ester profile that characterizes many real ales. Typically underattenuating, the malt profile is left intact with a mild sweetness in the finish.
CL-160 British Draft Ale CL-160 gives a full bodied, well rounded flavor with threshold diacetyl. This yeast has a way of emphasizing malt character like no other yeast we've used. Highly recommended for many ale styles. Oxygenation will greatly affect attenuation.
CL-170 Classic British Ale CL-170 produces a beautiful draft bitter or Porter. This yeast leaves a complex ale with very British tones and fruit like esters, yet it also attenuates well, leaving a dry finish. It is a good choice for high gravity worts.
CL-200 Scottish Ale Use for classic Scottish heavys, 90's- or strong ales. This yeast produces a soft, fruity malt profile with a subtle woody, oakey ester profile. A mild, mineral like dryness in the finish makes this a very complex strain.
CL-210 Scottish Bitter CL-210 has a soft, yeasty, fruity nose which yields to a well attenuated malt flavor and big ester complex of ripe fruit, apricots and rose petals. Dry and complex, yet smooth and fruity with mild sulphur.
CL-240 Irish Dry Stout A true, old fashioned, top fermenting yeast which leaves a very recognizable character to Dry Stouts. Has a vinous, almost lactic character which blends exceptionally well with roasted malts. Highly attenuative.
CL-260 Canadian Ale A strong fermenter that leaves a light, fruity finish. Suitable in light Canadian beers, as well as porters, bitters, and pale ales.
CL-270 Australian Ale Produces a malty, bready, nutty character with a pleasant honey like finish. This yeast emphasizes malt nuances and is very forgiving in warmer fermentations for those who cannot ferment under controlled conditions.
CL-300 Belgian Ale #1 For a truly classic Belgian Ale flavor. Robust and estery with big notes of clove and fruit in the aroma and flavor. Recommended for many Belgian ales, this yeast also attenuates high gravity worts well.
CL-320 Belgian Ale #2 A traditional trappist strain that is particularly good in doubles and triples. This strong fermenting yeast attenuates well and produces the complex, dry, fruity, ester profile sought after in fine imported Belgian ales.
CL-340 Belgian Ale #3 Slightly more refined than our CL-300, this yeast also produces a classic Trappist character, with esters of spice and fruit. Mildly phenolic, this is a strong fermenting yeast, well suited to Trappist and other Belgian ales.
CL-380 Saison This yeast leaves a smooth, full character in the malt, with mild yet pleasant esters and flavors reminiscent of apple pie spices. Best used to recreate country French and Belgian Ales as well as Grand Cru styles.
CL-400 Old German Ale For traditional Alt Biers, a strong fermenter which leaves a smooth, attenuated, yet mild flavor. Use in your favorite German Ale recipes. Also makes a slightly dry but clean, quenching wheat beer.
CL-450 Kölsch Produces an astonishing clean lager like flavor at ale temperatures. smooths with time into a clean, well attenuated flavor. Mineral and malt characters come through well, with a clean, lightly yeasty flavor and aroma in the finish.

BrewTek Lager yeasts

CL-600 Original Pilsner Leaves a full bodied Lager with a sweet, mildly under attenuated finish and subdued diacetyl character. Use this distinct, flavorful strain in classic Czechoslovakian Pilsners or any lager in which you would like to emphasize a big, malty palate.
CL-620 American Megabrewey A smooth yeast with a slightly fruity character when fresh which lagers into a smooth clean tasting beer. Use for your lightest, cleanest Lagers or those in which you want an unobtrusive yeast character.
CL-630 American Microbrewery Lager A strong fermenter, this yeast leaves a clean, full flavored, malty finish despite its strong attenuation. This is a very old strain, commonly used by pre-prohibition American breweries. Being quite versatile, use CL-630 in all Lager styles you wish to have a clean, full flavor.
CL-64 Carlsberg Lager A Scandinavian lager strain which leaves a full flavored, slightly sweet and malty profile. BR discontinued carrying this before they changed their numbering system (x10) because they (Jeff) said it was necessary to culture it in the same gravity wort as it was to be pitched into. Most people were not doing this and so were not getting good attenuation.
CL-650 Old Bavarian Lager Well rounded and malty with a subtle ester complex and citrus undertones. This distinct, Southern German yeast strain is great for full flavored, classic German lagers such as Bock, Dunkel and Helles styles.
CL-660 N. German Lager Exhibits the classic clean, crisp, traditional Northern German Lager character. Used in German Pilsners, Mexican and Canadian Lagers, this strong Fermenting, forgiving Lager yeast is an excellent strain for everything from general purpose Lagers to the finest European beers.
CL-670 Swiss Lager A unique strain that has both a clean, crisp lager flavor and a soft, smooth maltiness. Perfect for European Pilsners. Like our CL-660 strain, this is an excellent all purpose Lager yeast for those wanting a fuller, rounder palate.
CL-680 East European Lager From a very old, European brewery, CL-680 imparts a smooth, rich, almost creamy character, emphasizing a big malt flavor and clean finish. This is our choice when brewing lagers in which the malt character should be full and smooth, such as Marzens, Oktoberfests & Dunkels.
CL-690 California Gold Use to recreate "California common beers" leaves a slightly estery, well attenuated finish. The character of this yeast is quite distinct, try it in American or robust Porters for a new and unique flavor profile.

BrewTek Wheat Beer yeasts

CL-900 Belgian Wheat A top fermenting yeast which produces a soft, bread like flavor and leaves a pleasant, mildly estery finish. Combine with Curacao and coriander to make a delicious, Belgian Witbier or French Biere Blanche.
CL-920 German Wheat A true, top fermenting Weizenbier yeast. Intensely spicy, clovey and phenolic. This yeast is highly attenuative and flocks in large, loose clumps. Use for All Weizen recipes and is particularly good in Wiezenbocks.
CL-930 German Weiss Milder than CL-920, the CL-930 strain, from a famous German yeast bank, still produces the sought after clove and phenol characters but to a lesser degree, with a fuller, earthier character.
CL-980 American White Ale A smooth, American style wheat beer yeast with an exceptionally round, clean malt flavor. The low flocculation of this yeast leaves a cloudy "Hefe-Weizen" yet it's smooth flavor makes it an integral part of a true unfiltered wheat beer.


BrewTek Yeast Strains Fermentation Specifications

           

Yeast Strain

CL#

Category

Flocculation

Atten. %

Best °F

           

Am. Micro #1

CL-10

Ale

Normal

73 to 76%

62-72° F

Am. Micro #2

CL-20

Ale

Normal

73 to 75%

62-70° F

Cal Pub

CL-50

Ale

Normal

74 to 76%

60-70° F

Brit Micro

CL-110

Ale

Med-High

73 to 75%

64-69° F

Brit. PA #1

CL-120

Ale

Med-High

75 to 77%

63-68° F

Brit. PA #2

CL-130

Ale

Normal

74 to 76%

64-69° F

Brit. Real Ale

CL-150

Ale

Med-Low

66 to 70%

64-69° F

Brit. Draft

CL-160

Ale

Normal

72 to 78%

64-70° F

Classic Brit.

CL-170

Ale

Med-High

75 to 77%

64-69° F

Scot Ale

CL-200

Ale

Med-High

77 to 80%

60-68° F

Scot Bitter

CL-210

Ale

Med-High

73 to 75%

62-68° F

Irish Stout

CL-240

Ale

Normal

76 to 78%

60-68° F

Aus Ale

CL-270

Ale

Normal

74 to 76%

66-76° F

           

Belg. #1

CL-300

Belg

Med-High

75 to 77%

66-72° F

Belg. #2

CL-320

Belg

Normal

74 to 76%

66-72° F

Belg. #3

CL-340

Belg

Med-High

74 to 76%

66-72° F

Saison

CL-380

Belg

Normal

74 to 76%

66-72° F

           

Old German

CL-400

Ger

Normal

75 to 77%

58-66° F

Kolsch

CL-450

Ger

Med-High

75 to 78%

58-66° F

           

Orig Pils

CL-600

Lager

Normal

74 to 76%

48-54° F

Am Mega lag

CL-620

Lager

Normal

74 to 76%

46-54° F

Am Micro Lag

CL-630

Lager

Normal

74 to 76%

48-56° F

Old Bavarian

CL-650

Lager

Normal

74 to 76%

46-54° F

N. German

CL-660

Lager

Normal

74 to 76%

46-54° F

Swiss

CL-670

Lager

Normal

74 to 76%

48-54° F

E. European

CL-680

Lager

Normal

75 to 78%

46-54° F

Calif Gold

CL-690

Lager

Normal

74 to 76%

58-64° F

           

Belg wheat

CL-900

Wheat

Normal

72 to 74%

66-72° F

Ger. Wheat

CL-920

Wheat

High

75 to 77%

66-72° F

Ger. Weiss

CL-930

Wheat

Normal

74 to 76%

66-72° F

Am White

CL-980

Wheat

Low

74 to 76%

64-70° F


(page updated 10/16/13)