How long do Sugar substitutes last after opening?

Updated 2026-08-07 · Free · No sign-up

Once opened, Sugar substitutes keep about Indefinitely in the pantry. Unopened, they keep about 2 years.

Source: USDA FoodKeeper v128 · Category: Baking & cooking

How long Sugar substitutes keep

SituationKeeps for
Unopened · pantry2 years
Opened · pantryIndefinitely

Only situations with a published figure are listed. A blank isn't “forever” — it means no reliable number is published for it.

Storage

How to tell if Sugar substitutes has gone bad

These are the general spoilage signs for baking & cooking — never taste something to test it. When in doubt, throw it out.

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FAQ

How long do Sugar substitutes last after opening?

About Indefinitely in the pantry, according to USDA FoodKeeper v128.

Do Sugar substitutes need to be refrigerated after opening?

Sugar substitutes are shelf-stable at room temperature: cool, dry pantry, sealed — refrigerating after opening is optional and mainly preserves quality. Refrigerating it mainly preserves quality rather than safety.

How can you tell if Sugar substitutes are bad?

Look for: A rancid, paint-like, or musty smell; Clumping, or moisture in something that should be dry; Insects, webbing, or larvae in the package; Faded colour or a lost aroma. Never taste something to test it — when in doubt, throw it out.

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