BBXSS-1123 / Winter 2023

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

Source: A “living” culture blend propagated from our carefully managed continuous solera fermentation.

 Sour Solera helped win a medal in Wood- and Barrel-Aged Sour Beer (GABF 2021) for River Dog Brewing

Sour Solera™ Blend contains a unique and complex collection of Saccharomyces, Brettanomyces, Lactobacillus, Pediococcus and other funky yeast and souring bacteria pulled from an active fermentation. This blend can sour in a matter of months at 70ºF or higher, or if you prefer a more prolonged fermentation, use large amounts of aged hops and/or ferment and hold at temperatures below 70ºF.

Many lab-produced multi-species culture blends fail to reproduce the richness and complexity of traditional lambic-style fermentations in their first effort. This can be a result of artificially slamming together cultures after pulling them directly from the freezer.

This blend is available seasonally, and will always be changing and evolving due to the nature of solera fermentations. Warning: No two Sour Solera™ Blend releases will be the same, and neither will their fermentations.

Catalog: BBXSS-1123 / Winter 2023

Brewing Info*:

• Type: Yeast & Lactic Acid Bacteria blend. Saccharomyces, Brettanomyces, Lactobacillus, Pediococcus, and other wild variants.
• Pitching Rate: Directly pitchable into 5 gallons of 1.050 or lower wort
• Estimated Attenuation: 96%-100%
• Estimated Final pH: 3.2-3.5
• Flavor/Aroma Profile: Funky, Sour; varies batch-to-batch
• Flocculation: Low to medium; Higher with prolonged aging
• Recommended Fermentation Temperature:
  • For quick souring (less than 3 months): 70-80ºF
  • For gradual souring: below 70ºF

Bootleg Biology is a full-service yeast lab for professional brewers and homebrewers.

From our location in Nashville, TN, we’ve earned a reputation for award-winning, creative cultures that meet the rigorous demands of a brewery while still satisfying brewers’ goals to push the envelope.

From crispy lagers and juicy IPAs to complex mixed fermentations, Bootleg has a culture for every brew. All of our yeast is made fresh, ensuring optimal
viability and keeping you on schedule.

Our lab offers a wide range of quality control testing to ensure your product meets your high standards, including PCR testing for common contaminants, IBU testing, selective media plating and more.