Hefeweizen Ale I Yeast | Omega Yeast OYL-021
Omega OYL-021 Hefeweizen Ale I Yeast for Classic German Wheat Beer Character
Omega Yeast OYL-021 Hefeweizen Ale I is a traditional wheat beer strain for brewers who want expressive banana and clove character, high-style authenticity, and the kind of classic fermentation profile that defines hefeweizen and other German wheat beer styles. It is a strong choice when yeast character is supposed to be central, not neutral.
Based on Omega's published guidance and current retailer technical references, this strain typically delivers 73% to 77% attenuation, low flocculation, up to 10% ABV tolerance, and a recommended fermentation range of 64 to 75°F. It is also listed as phenolic and non-diastatic, making it a natural fit for traditional wheat beer fermentation.
What Omega OYL-021 Contributes to Beer
- Classic hefeweizen profile: Banana esters and clove-like phenolics help build recognizable German wheat beer character
- Low flocculation: Supports the expected haze and softer presentation of unfiltered wheat beers
- Wheat-beer authenticity: Strong fit for brewers targeting traditional Bavarian fermentation character
- Expressive yeast-driven flavor: Ideal when fermentation character should stand front and center
Omega OYL-021 Specifications
- Attenuation: 73% to 77%
- Flocculation: Low
- Alcohol tolerance: up to 10% ABV
- Fermentation temperature: 64 to 75°F (18 to 24°C)
- Phenolic: Yes
- Diastatic: No
Best Styles for OYL-021 Hefeweizen Ale I
- Hefeweizen
- Dunkelweizen
- Weizenbock
- German-style wheat ales
- Other expressive wheat beer fermentations
Why Brewers Choose OYL-021
This strain is a strong fit when a recipe depends on yeast-derived banana and clove to feel complete. It helps brewers build wheat beers with the soft body, expressive aroma, and classic fermentation identity people expect from the style.
For brewers who want a true wheat-beer strain with traditional German character, OYL-021 is a reliable option.
Liquid Yeast Storage and Shipping
We store liquid yeast in temperature-monitored refrigeration to help preserve yeast health until shipment. Once in transit, weather and carrier handling are outside our control, so liquid yeast customers should choose shipping protection based on season, route, and transit time.
Expedited shipping, insulated mailers, and ice packs can materially reduce risk for liquid yeast during warm-weather transit. Dry yeast is generally much less risky to ship than liquid yeast.
Related Yeast and Brewing Resources
Browse our full Omega Yeast collection for more wheat, ale, and specialty strains. You can also review our yeast shipping best practices page before ordering liquid yeast in warmer weather.
If you want banana-and-clove German wheat beer character from a classic hefeweizen strain, Omega OYL-021 is a strong choice.