Saisonstein® Yeast | Omega Yeast OYL-500
Omega OYL-500 Saisonstein Yeast for Dry, Fruity, Reliable Saison Fermentation
Omega Yeast OYL-500 Saisonstein is a hybrid saison strain built from Omega's French Saison and Belgian Saison lineages, designed for brewers who want high attenuation, dependable performance, and expressive farmhouse character without the same level of stall risk associated with some traditional saison yeasts. It is a strong fit for saison, farmhouse ale, and Belgian-inspired beers where a dry finish, layered fruit, and restrained rustic complexity all matter.
Based on current technical references tied to this product, the strain is typically listed at 80% to 90% attenuation, low flocculation, up to 11% ABV tolerance, and a recommended fermentation range of 65 to 78°F. It is also currently marked phenolic: yes, diastatic: yes, and STA1 positive, which makes it especially important for brewers to manage process separation and cleaning practices appropriately when using it alongside non-diastatic strains.
What Omega OYL-500 Contributes to Beer
- High attenuation: Helps build the dry finish expected in many saison and farmhouse styles
- Balanced saison expression: Can provide fruit, spice, and light rustic character without becoming overly aggressive
- More dependable saison fermentation: Useful for brewers who want expressive character with strong finish reliability
- Good farmhouse versatility: Fits modern saison and Belgian-inspired recipe design well
Omega OYL-500 Specifications
- Attenuation: 80% to 90%
- Flocculation: Low
- Alcohol tolerance: up to 11% ABV
- Fermentation temperature: 65 to 78°F (18 to 26°C)
- Phenolic: Yes
- Diastatic: Yes
- STA1: Positive
Best Styles for OYL-500 Saisonstein
- Saison
- Farmhouse Ale
- Belgian-Inspired Ale
- Other dry, expressive rustic ales
Why Brewers Choose OYL-500
This strain is a strong option when a brewer wants the dryness and expressive character of saison fermentation with a more confidence-inspiring finish profile. It works well in beers where attenuation, drinkability, and layered yeast character are all part of the target.
Liquid Yeast Storage and Shipping
We store liquid yeast in temperature-monitored refrigeration to help protect 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, destination, 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 saison, Belgian, and specialty strains. You can also review our yeast shipping best practices page before ordering liquid yeast in warmer weather.
If you want a saison strain that finishes dry, stays expressive, and gives brewers a more dependable path to complete fermentation, Omega OYL-500 Saisonstein is a strong choice.