Omega

This great lager strain is thought to originate from a well known Mexican brewery. Simply put, it is clean, crisp, bright and versatile.

Kolsch II is warmer fermenting than Kolsch I (OYL-017), flocculates much better & clears more quickly, so it is a little easier to manage. It is a lager-like ale strain that's lightly fruity, crisp & clean with a hint of sulfur that disappears with age to

Ireland’s storied stout is thought to be balanced by this dry, crisp, lightly fruity, versatile and powerful strain. A good fermenter with reliable, average flocculation.

A classic German wheat strain, it’s a cloudy, big top cropper. Presenting banana and clove, the esters turn up with increased temperatures, wort density and decreased pitch rate, or stay muted at lower temperatures where clove stands out.

This strain offers the mildest funk, presenting leather and some pineapple, and more noticeable in the aroma than flavor.

Contains a Sacch strain and is spiked with brux, lambicus, two Brett isolates from a Brett-famous brewery, and two Brett isolates from an ​“intense” Belgian source, for a funky, fruity, complex, 8‑strain composition.

Contains a Sacch strain and is spiked with brux for development of moderate funk in secondary. May take 3+ months to emerge.

An eruptive top cropper displaying nice fruit and rustic phenolics. This reliable Belgian strain is a good flocculator with a wide temperature range. Three famous brewers ferment this on vastly different schedules, showing the varied outcomes available.

As one of the few highly flocculent Belgian ale strains, Belgian Ale A makes a great Belgian house strain: it crops easily and has a well-rounded flavor profile with balanced fruitiness and phenolics. Esters increase with upward temperatures.

Thought to originate from a small, sophisticated, Belgian brewer’s spelt saison. It is earthy, spicy, peppery, tart and dry, with tropical fruit and citrus at warm fermentation temperatures.

Ripe banana esters (with a hint of pear) make this new, Omega Yeast-original strain a standout for pastry stouts, milkshake IPAs and other modern ales. Pitch at 68°F (20°C) and let free rise to 72-76°F (21-23°C) for prime banana flavor. Unlike the Hefewei

Voss Kveik is non-phenolic and produces a beer with moderate citrus notes allowing it to pair very well with citrusy and fruity hops. This strain is not fast at the low end of the range so don be afraid to pitch at temperatures in the middle to upper part

Combining the French and Belgian Saison Strains, the Monster produces a nice balance of fruit flavor from the Belgian strain with the fermentability of the French yeast. Exhibiting the best characteristics of both yeasts, the Monster is created by and ava

A wonderfully unique Norwegian farmstead kveik, Hornindal produces a tropical flavor and complex aroma that can present itself as stonefruit, pineapple, and dried fruit leather, which complement fruit-forward hops.

C2C American Farmhouse is a coast to coast blend of one saison strain from a famous Northeast U.S. brewery and one Brettanomyces strain from a Northwest U.S. brewery. The blend results in a fast developing fruity and funky farmhouse ale.

Well-suited for making 100% Brett beers, the Brett Blend is a combination of two Brettanomyces strains, producing huge tropical fruit aromas during fermentation. During the conditioning phase, the tropical fruit notes will fade somewhat, allowing the flav

A blend of nearly every Brett in our collection. Use All the Bretts in secondary and expect high attenuation and a fruity and funky complexity that continues to develop over time. This evolving blend always contains at least 10 Brett strains.

Gulo Ale excels in any style where a high level of attenuation is desired w/o phenolics. We love using it in an IPA (including a brut IPA), stout, or Bier de Garde. Non-phenolic Expect a citrus-forward aroma w/hints of peach & a clean finish.

Originating from the village of Grodas in Norway, Espe offers the unique profile of lychee, pear, and tropical fruit cup. The strain bolsters the sweet aromatics of modern IPAs, but is versatile enough for your flagship pale ale or seasonal brew. Espe is

Isolated from our Hornindal Kveik (OYL-091) culture, Lutra is shockingly clean with unrivaled speed when pitched at 90F (32C). The strain is perfect for brewing a refreshing pseudo-lager without the lead time of a lager. Lutra is your worry-free way to na