Yeast
Urs Lager — Jasper Yeast
Jasper Yeast
Spec sheet The maker publishes these figures for this exact product.
- Lab
- Jasper Yeast
- Product code
- JY337
- Form
- liquid
- Type
- lager
- Attenuation
- 72–78 %
- Temperature
- 10–14 °C
- Flocculation
- high
- Alcohol tolerance
- 9 %
- STA1
- not published — treat as unknown
Description
A strongly flocculating German microbrewery strain that ferments slowly but steadily, attenuates well and drops bright. It leaves a touch of sweetness from yeast character alone, which suits hop-flavor-forward and light Asian-style lagers. It also shows mild thiol-releasing activity where precursors are present, though the effect is subtle and the strain is not genetically modified.