Reported 5 months ago
Experts suggest that it is safe to store soy sauce at room temperature both before and after opening due to its high sodium content and fermentation, making it last a long time without refrigeration. However, for optimal quality and flavor, it is recommended to refrigerate soy sauce after opening, as unrefrigerated soy sauce can lose its quality quickly, especially if exposed to heat or temperature changes. Kikkoman advises refrigerating soy sauce after opening to maintain peak freshness and flavor, while it is suggested to store soy sauce in the fridge if it is not used frequently, or if used daily, a small bottle can be kept in the pantry or on the dining table.
Source: YAHOO