Your complete guide to tamari sauce - discover how to store it properly, identify when it's gone bad, and find the best substitutes for your recipes.
Storage times and freshness tips for tamari sauce in different conditions.
Safety first: This guide provides general information. When in doubt, throw it out! Trust your senses and err on the side of caution. If something smells, looks, or tastes off, don't consume it.
Mold growth (white, green, or black fuzzy patches or spots), significant cloudiness or sediment that wasn't present before, an off-smell (sour, yeasty, overly pungent, or chemical-like), or a drastically altered taste.
Visual inspection: Carefully check the surface of the liquid and the sides of the bottle for any mold, unusual film, or excessive cloudiness/sediment. Smell test: Pour a small amount into a spoon or cup and sniff. It should have its characteristic savory, umami aroma. Any sour, yeasty, or otherwise 'off' smell is a sign of spoilage. Taste test (caution): If visual and smell tests are clear, taste a very small drop. It should taste as expected; any sourness, bitterness, or chemical taste means it's bad and should be discarded.
While tamari's high salt content makes it resistant to rapid spoilage, refrigeration after opening is recommended to maintain its peak flavor, aroma, and overall quality for a longer period. Always keep the lid tightly sealed to prevent oxidation and absorption of other odors from the refrigerator.