How Long Does Soy Sauce (Opened) Last?
Opened bottle of soy sauce.
The Short Answer
Soy Sauce (Opened) lasts 180–365 days in the refrigerator when stored properly at 40°F or below. At room temperature in the pantry, expect 90–180 days under normal conditions. These times are based on USDA food safety guidelines and assume proper storage conditions.
Storage Times at a Glance
Source: USDA FoodKeeper | Last verified: March 19, 2026
Soy sauce is one of the most shelf-stable condiments in your kitchen. It is fermented and high in sodium, both of which prevent bacterial growth. Refrigeration keeps it tasting fresh longer but it will not go bad on the counter.
How to Store Soy Sauce (Opened)
Soy sauce is fermented and naturally shelf-stable. Refrigeration preserves flavor and color longer but is not strictly required.
How to Tell if Soy Sauce (Opened) Has Gone Bad
Look for these signs that soy sauce (opened) has spoiled: soy sauce rarely spoils. flavor may dull and color may darken over time. discard if it smells off or has mold around the cap.
The Professor's rule: When in doubt, throw it out. No meal is worth food poisoning.
The Bottom Line
Properly stored soy sauce (opened) stays safe for 180–365 days in the fridge. Always store in airtight containers, refrigerate within 2 hours of purchase or preparation, and trust your senses. If something looks, smells, or feels off, discard it regardless of how many days it has been.
Frequently Asked Questions
Not in a safety sense. The flavor gradually dulls over time. An opened bottle is best within 6-12 months for peak quality, but it remains safe much longer.