Description
Harnessing ambient microbes to create a symbiotic culture of wild yeast and lactic acid bacteria.
Technical
Lactobacillus spp. and Saccharomyces cerevisiae dominate, metabolizing starches into CO₂ (leavening) and lactic/acetic acids (flavor). Enzymatic hydrolysis of gluten occurs concurrently.
Culinary Significance
Foundational for sourdough bread, imparting complex flavors and extended shelf-life vs. commercial yeast.
Science
Primary Reaction
Heterolactic fermentation
Parameters
Temperature
24°C optimal
18°C to 32°C range
Time
7 days
3 days – 14 days (full maturity)
Equipment
Non-reactive container (glass)CheeseclothDigital scale (±0.1g)