WLP001 California Ale Yeast® is a popular ale yeast strain developed in San Diego in 1995. It is prized for its clean fermentation profile and versatility across a wide range of beer styles.

Fermentation Characteristics:

Attenuation: 73–80%

Flocculation: Medium

Optimum Fermentation Temperature: 68–73°F (20–23°C)

This yeast produces dry beers with a crisp finish. Its medium flocculation helps create clear, stable beers, while its clean fermentation allows malt and hop flavours to shine without imparting strong esters or phenols. It also quickly reabsorbs diacetyl, minimizing off-flavours.

Flavour Profile:

WLP001 emphasizes clean, balanced flavours with a slight accentuation of hop character, making it especially suited for hop-forward beers.

Ideal Applications:

India Pale Ales (IPAs)

Pale Ales

Porters

Kölsch

Substitutions:

Brewers looking for similar strains may consider yeast options such as California V Ale Yeast, San Diego Super Yeast, or Dry English Ale Yeast, which offer comparable clean profiles with slight variations in attenuation and flavour.