Yeast
Das Kolsch — Jasper Yeast
Jasper Yeast
Spec sheet The maker publishes these figures for this exact product.
- Lab
- Jasper Yeast
- Product code
- JY158
- Form
- liquid
- Type
- hybrid
- Attenuation
- 74–79 %
- Temperature
- 15–18 °C
- Flocculation
- medium
- Alcohol tolerance
- 11 %
- STA1
- not published — treat as unknown
Description
A German ale strain rescued from a Washington DC brewery that makes soft, refreshing, faintly fruity beer. It throws sulfur during fermentation, especially when run cold, but that blows off with warmth or a short conditioning period. Good for Kölsch, Altbier and a middle-of-the-road American IPA, and it repitches well for another generation.