Yeast
NA CLASSIC — Berkeley Yeast
Berkeley Yeast
Spec sheet The maker publishes these figures for this exact product.
- Lab
- Berkeley Yeast
- Product code
- NA CLASSIC
- Form
- liquid
- Type
- ale
- Attenuation
- 10–25 %
- Temperature
- 19–20 °C
- Flocculation
- medium
- Alcohol tolerance
- not published as a number
- STA1
- not published — treat as unknown
Description
A Saccharomyces cerevisiae engineered so it cannot use maltose or maltotriose, which caps alcohol production near zero while still fermenting enough to build classic craft-beer character. Pitched very heavily — Berkeley specifies a cell count per milliliter rather than per degree Plato — and the finished beer needs pasteurizing.