Mixed-Fermentation Sour Beer

Intended for beer fermented with any combination of Sacch, Lacto, Pedio, and Brett (or additional yeast or bacteria), with or without oak aging (except if the beer fits instead in […]

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Wild Specialty Beer

Intended for variations of a Base Style beer from style 28A, 28B, or 28D. These variations may include the addition of one or more Specialty-Type Ingredients; aging in non-traditional wood […]

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Straight Sour Beer

Intended for beers fermented with Sacch and Lacto, with or without oak aging, produced using any technique (e.g., traditional co-fermentation, quick kettle souring).

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