What You Need to Know
The LAB, primarily Lactobacillus plantarum and Leuconostoc mesenteroides, metabolize the sugars in cabbage to lactic acid, lowering the pH to 3.5–4.5. The porous clay allows CO₂ to escape while maintaining anaerobic conditions, and the 2–3 % salt concentration controls osmotic pressure and selects for LAB over spoilage microbes.
The Science
Primary Reaction
C6H12O6 → 2 CH3CH(OH)COOH + 2 CO2