Sake #9 Yeast | White Labs WLP709 Yeast | Vault Strain
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White Labs WLP709 Sake #9 Yeast : Premium Sake Yeast for Ginjo-style Fermentation
Expressive Sake Yeast #9 for Aromatic, Foam-Free Fermentation
White Labs WLP709 Sake Yeast, also known as Sake #9, is a refined strain designed specifically for sake brewing and rice-based fermentations. It’s widely used in Ginjo-style sake due to its clean, floral aroma and smooth fermentation profile. Low foam production and high ethanol tolerance make WLP709 an excellent choice when crafting high-end sake at home or in small batches.
Key Characteristics:
- Attenuation: 72% – 78% (leaves a touch of sweetness and body)
- Flocculation: Low to Medium (yields clean, clear sake)
- Alcohol Tolerance: Very High (up to 15% ABV)
- Fermentation Temp: 62 °F – 68 °F (17 °C – 20 °C), ideal for aroma retention
- STA1 Status: Negative (no over-attenuation of starch)
Suggested Styles & Uses:
- Sake yeast #9 for traditional sake and Ginjo-style fermentations
- Rice-based washes, low-fat meads, or experimental sake hybrids
- Home brewing setups labeled “sake yeast” or “yeast sake” for clarity
- When crafting flavorful 1-gallon sake batches or specialty rice wines
Why Choose WLP709 Sake Yeast?
- Perfect for Ginjo-style sake: Enhances floral and fruity notes with minimal off-flavors
- Low foam behavior: Reduces risk of blow-off during fermentation
- High alcohol resistance: Capable of fermenting to 15%+ ABV, preserving delicate aroma
- Consistent clarity: Low flocculation delivers clean sake with fewer filtration needs
Yeast Health & Fermentation Support
For optimal performance of WLP709, maintain fermentation temperature at 62 °F to 68 °F and consider a small yeast nutrient addition (such as Fermax or Yeast Nutrient) when working with high-sugar rice musts. Use proper sanitation, temperature control, and gentle degassing to preserve the delicate aromatic profile.
Our Commitment to Quality
At SoCal Brewing Supply, we store all White Labs yeast in temperature‑controlled refrigeration monitored 24/7. To ensure maximum viability, we recommend adding an ice pack and insulated envelope to your order. Ice packs may arrive melted, but they help buffer against transit temperature spikes.
Explore More Sake-Specific Options
Looking for sake yeast for sale or want to build a complete sake kit? Browse our curated selection of sake yeast strains, koji, and brewing accessories in our White Labs Yeast collection.