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It is a trusted choice for winemakers looking to produce smooth
Built from 25 feet of 3/8" copper tubing
Reliable performance: Useful for core ale styles that need consistent
earthy profile
and specialty fermentation options
Appalachian Tart | White Labs WLP631 Yeast | Vault Strain new-recipe It is a trusted choiceFast, Fruity Sour with One Easy Pitch WLP631 Appalachian Tart is a specialty White Labs blend of farmhouse Kveik yeast and Lactobacillus, designed for clean souring during primary fermentation. It delivers pleasantly tart, lightly fruity beers in as little as 72 hours when fermented warm. Key Benefits: Single vessel souringno need for separate kettle sour or bacteria additions Quick fermentation: finishes in ~3 days at 90 100 F (3238 C) Mild tartness