Yeast
River Thames — Jasper Yeast
Jasper Yeast
Spec sheet The maker publishes these figures for this exact product.
- Lab
- Jasper Yeast
- Product code
- JY311
- Form
- liquid
- Type
- ale
- Attenuation
- 72–78 %
- Temperature
- 16–22 °C
- Flocculation
- medium-low
- Alcohol tolerance
- 10 %
- STA1
- not published — treat as unknown
Description
A London brewery strain with soft apricot and pear esters set against gentle malt sweetness and a faintly tart close. Moderate attenuation and settling give a clear, balanced pint, and its alcohol tolerance opens up bigger beers. Keep the mineral content middling rather than extreme. Suits bitters, ESBs and porters.