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How long do condiments and canned goods last once opened?

The rule that trips people up: most condiments and sauces are shelf-stable sealed but need refrigerating once opened, and an opened can should never be stored in the can. High-acid and high-sugar condiments last longest; anything with dairy, egg or fresh aromatics is shorter.

What are common spoilage signs for condiments & canned?

  • Mold on the surface or around the rim and cap.
  • A bulging, leaking or rusted can, or a can that spurts when opened. Discard it unopened; this can signal dangerous spoilage.
  • In cooking fats: a rancid, crayon-like or stale-nut smell, a darkened colour, or a sticky film round the rim. Re-used frying oil also turns on you faster once it has been through food.
  • Separation that does not stir back together, a fizzing or fermented smell, or an off color.

Storing condiments & canned

  • Refrigerate after opening unless the label clearly says otherwise, and wipe the rim before recapping.
  • This one is the exception that stays in the cupboard after opening. Its acidity or sugar is doing the preserving, so cold buys nothing; just keep the cap clean and closed.
  • Transfer leftover canned food into a sealed container; never refrigerate it in the open can.
  • Keep lids clean and closed so nothing dries or molds around the thread.

Condiments & canned shelf life, food by food

Tap a food for its once-opened window, full shelf-life table and storage tips.

Stop guessing, start tracking

Add condiments & canned to a MyListResort grocery list, tap “opened,” and get an estimated freshness countdown, free. See how freshness tracking works, or what a shared grocery list does for a household.

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Shelf-life windows come from the USDA FoodKeeper, published by the USDA Food Safety and Inspection Service (public domain); we vendor the FSIS FoodKeeper dataset and refresh it in place. These are quality estimates, not food-safety determinations or guarantees: actual condition depends on storage and handling, and harmful bacteria may not have obvious signs. Follow package and official guidance; when in doubt, throw it out. See our food safety notice and terms.