Wallonian Farmhouse I Ale Yeast | White Labs WLP4020 Yeast | Vault Strain measuring

Wallonian Farmhouse I Ale Yeast | White Labs WLP4020 Yeast | Vault Strain measuringWhite Labs Wallonian Farmhouse I Ale Yeast : WLP4020 Vault Strain Bold, Rustic Character for Classic Farmhouse Ales White Labs WLP4020 Wallonian Farmhouse I Ale Yeast is a Belgian style saison strain sourced from the French speaking Wallonia region. Its known for its assertive spicy and phenolic profile, paired with earthy, fruity esters. WLP4020 has a high attenuation rate and slightly tart finish, making it ideal for traditional farmhouse styles.

This yeast ferments quickly and cleanly at lower temperatures

and cider producers aiming for clean fermentation and high alcohol tolerance

clear plastic for easy visual flow monitoring

and transit conditions

Efficient Clearing: Medium to high flocculation allows for bright beer with minimal fining

clean-fermenting lager yeast that emphasizes malt richness and smooth fermentation

Limited Availability: As a Vault strain

Belgian-Style Wheat Ale

Attenuation: 75% - 80%

Clean Fermentation: Produces smooth

earthy phenolics with subtle fruit and light tartness

Smooth Sourness: Adds refreshing tartness without harsh acidity