What You Need to Know
During fermentation, lactic acid bacteria such as Lactobacillus plantarum and yeasts like Saccharomyces cerevisiae metabolize sugars to produce lactic acid, ethanol, and CO₂, which lower the pH to 4.5–5.0. The acidic environment preserves the sauce while allowing capsaicin to remain largely stable. The process also generates volatile compounds that contribute to the sauce’s characteristic aroma and complexity.
The Science
Primary Reaction
Fermentation of sugars by lactic acid bacteria and yeasts producing lactic acid, ethanol, and CO₂