Black Project Mixed Sour Culture - Bootleg Biology

Black Project Mixed Sour Culture - Bootleg Biology

Item currently out of stock

Availability: Core culture. Available with every homebrew culture presale release (3 times per year)

Source: A unique blend of wild yeast and lactic acid bacteria (LAB) curated by Black Project Spontaneous Ales in Denver, CO, USA

Available for the first time during our Spring 2022 Homebrew Presale!

Black Project Spontaneous Ales is the creator of world-class beers Dreamland, Shadow Factory, Jumpseat and Stargate.

This culture is a rare mix of microbes sourced from the Denver brewery’s coolship and wild yeast living on Colorado-grown Riesling grape skins used for beer production.

Expect a short, clean-tasting initial phase, with Brett funk and acid developing over multiple months.

Black Project Spontaneous Ales  Culture is ideal for a wide range of Belgian and farmhouse ale styles like grisettes, saisons and American wild ales. Visit the official recipe page for inspiration when using this culture.

Brewing Info*:

  • Type: Yeast & lactic acid bacteria blend.
  • Pitching Rate: Directly pitchable into five gallons of 1.050 or lower wort
  • Estimated Attenuation: 92%-98%
  • Estimated Final pH: 3.8-4.0
  • Flavor/Aroma Profile: Clean saison initial; Funky, sour with aging; varies batch-to-batch
  • Flocculation: Low to medium; Higher with prolonged aging
  • Recommended Fermentation Temperature: 65F-75F (18C-24C)
Please Note: For best results we Always recommend ordering an Ice Pack with your liquid yeast. Ice Packs can be found below in the "You might Also Need" section.


Item # Y606
Shipping Eligible for Free Shipping Program
Availability Out Of Stock
Weight 0.19 LBS
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