Once opened, Frosting or icing keeps about 2–3 weeks in the fridge. Unopened, it keeps about 10–12 months.
| Situation | Keeps for |
|---|---|
| Unopened · pantry | 10–12 months |
| Opened · fridge | 2–3 weeks |
About 2–3 weeks refrigerated at 40°F (4°C) or below, according to USDA FoodKeeper v128. Refrigerate it once it's open.
Yes — keep Frosting or icing at 40°F (4°C) or below once it's open. Cool, dry pantry unopened; refrigerate at 40°F (4°C) or below after opening.
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.