Omega Yeast | OYL-500 Saisonstein® | Double Pitch | 225 Billion Cells
Omega Yeast | OYL-500 Saisonstein® | Double Pitch | 225 Billion Cells

Omega Yeast | OYL-500 Saisonstein® | Double Pitch | 225 Billion Cells

$14.99
Omega OYL-500 Saisonstein® produces a spicy, fruity, and dry fermentation profile ideal for expressive saisons and Belgian-style ales.
  • Spicy, fruity & dry profile
  • Excels in high-gravity saisons
  • 150 mL pack contains 225 billion cells, treats 5 gallons
Ice pack:

Ice Packs / Shipping: For best results, we strongly recommend adding an ice pack to your liquid yeast order. Ice packs do not guarantee that the yeast will arrive cold, but will keep yeast colder for longer during transit. We can not replace yeast that arrives warm. In warm weather months, we highly encourage choosing dry yeast.

Storage: Store in the fridge (33–38ºF). Do not freeze. Pitch cold - do not warm to room temp prior to pitching. Use within 4 months for direct pitching. For pouches older than 4 months, or that are warm, use a yeast starter to boost cell count.

Fermentation Temp Range
Each yeast strain has a temperature range where it performs best. Lagers require cooler temps, while Kveik yeasts can ferment in extreme heat. Maintaining the proper fermentation temperature for each yeast strain is crucial its health. Matching a yeast's ideal range to your environment (or your ability to control temp) is key to getting clean, consistent results.
Scale from 30°-120°F
Product Analysis
This typical analysis is not to be construed as product specification. Typical analysis represents average values, not to be considered as guarantees, expressed or implied, nor as a condition of sale.

Yeast Format, Liquid
Yeast Style, Belgian
Flocculation, Low
Attenuation, 80~90%
Diastatic, Yes
Phenolic, Yes
Fermentation Temperature Range, 65~78°F
Alcohol Tolerance,11%

OYL-500 Saisonstein® is a hybrid of Omega’s French and Belgian saison strains, engineered for expressive aromatics and high attenuation. It produces complex spice, subtle fruit esters, and a characteristically dry finish.

With attenuation ranging from 80–90% and alcohol tolerance up to 11%, this strain is ideal for high-gravity farmhouse ales. Low flocculation and diastaticus positive (STA1+) behavior allow it to ferment thoroughly, resulting in a dry, effervescent final beer. Ferments best between 65–78°F.

Saisonstein® excels in Belgian-inspired and farmhouse styles that benefit from expressive fermentation character.

Ideal for:

• Saison
• Farmhouse Ale
• Belgian Blonde
• Belgian Tripel
• Belgian-style specialty ales

• Store refrigerated at 33–38°F
• Do not freeze
• Pitch cold into well-oxygenated wort
• Ferment between 65–78°F
• Allow sufficient conditioning time due to low flocculation
• Use within 4 months for best viability
• Maintain strict sanitation due to diastaticus (STA1+) properties

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Omega Yeast | OYL-500 Saisonstein® | Double Pitch | 225 Billion Cells
From $14.99

Frequently Asked Questions

It means this strain contains the STA1 gene, allowing it to ferment complex sugars more completely and produce a very dry finish.

Each 150 mL pouch contains approximately 225 billion cells, designed to treat 5 gallons of wort.

Yes. With attenuation up to 90% and alcohol tolerance around 11%, it performs well in stronger saisons and Belgian-style ales.

Yes. Saisonstein® produces classic saison spice along with subtle fruit esters.

Yes. Because it is diastaticus positive, strict cleaning and sanitation are recommended to prevent cross-contamination.

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