What You Need to Know
Lactic acid bacteria (primarily Leuconostoc mesenteroides and Lactobacillus species) metabolize sugars at reduced rates in near-freezing conditions, producing lactic acid, acetic acid, and CO2 while delaying pH drop to preserve textural integrity.
Produces kimchi with brighter flavors and crisper texture than room-temperature fermentation, ideal for winter consumption when fresh vegetables are scarce.
Key Parameters
Temperature
1°C
-2°C - 4°C
Time
6 weeks
3 weeks - 3 months
Equipment
Onggi (traditional ceramic jars)Fermentation weightsInsulated underground storage (jangdokdae)
Steps
- 1.
Baechu-kimchi (Northern Korean provinces): Preserves winter cabbage harvests without excessive souring
The Science
Primary Reaction
Heterolactic fermentation