Kolsch Yeast | Wyeast 2565 Yeast

Kölsch Yeast | Wyeast 2565

Clean, Crisp Fermentations for Authentic Kölsch-Style Ales

Wyeast 2565 Kölsch Yeast is a traditional strain sourced from Cologne, Germany, and is the classic choice for brewing authentic Kölsch-style ales. This strain produces exceptionally clean, crisp beers with a delicate balance of soft fruit esters and subtle malt character. When properly cold-conditioned, it yields brilliant clarity and a refreshingly smooth finish.

Highly versatile, this yeast also works well in other light ale styles such as blonde ales, cream ales, and German-inspired hybrids. Its reliable performance and classic flavor profile make it a favorite among brewers aiming for clean and refreshing beers.

Key Characteristics:

• Strain Style: Kölsch Ale Yeast
• Flocculation: Low
• Attenuation: 73% - 77%
• Fermentation Temperature Range: 56°F - 70°F (13°C - 21°C)
• Alcohol Tolerance: ~10% ABV
• Recommended Styles: Kölsch, Blonde Ale, Cream Ale, German-Style Hybrid Ales

Why Choose Wyeast 2565?

• Authentic Origin: Classic Cologne Kölsch strain for true-to-style beers
• Clean Results: Produces crisp, delicate ales with subtle esters
• Cold Conditioning Friendly: Clears brilliantly when lagered

Pair with Wyeast Yeast Nutrient

For optimal fermentation, pair this strain with Wyeast Yeast Nutrient. Nutrient additions help reduce lag time, ensure full attenuation, and prevent sluggish fermentation—especially important when fermenting cooler Kölsch-style ales.

How We Handle and Ship Yeast

At SoCal Brewing Supply, we store all liquid yeast under optimal refrigerated conditions with 24-hour temperature monitoring to ensure freshness and viability. For best results when ordering online, we recommend adding an ice pack to your order.

Note: Ice packs may arrive melted, which is normal. They are designed to reduce temperature shock during shipping and protect yeast over short transit times.