Prosciutto keeps about 2–3 months in the fridge at 40°F (4°C) or below, counting from the day you bought it. Frozen, it keeps about 1 month.
| Situation | Keeps for |
|---|---|
| Unopened · fridge | 2–3 months |
| Freezer | 1 month |
About 2–3 months at 40°F (4°C) or below, according to USDA FoodKeeper v128. That window runs from the day you bought it — FoodKeeper publishes no separate after-opening figure for this one.
Yes — keep Prosciutto at 40°F (4°C) or below. Refrigerate at 40°F (4°C) or below.
Look for: A slimy or sticky film on the surface; Grey, green, or brown patches; A sour or ammonia-like smell; A swollen or leaking package. Never taste something to test it — when in doubt, throw it out.
Yes — USDA FoodKeeper v128 gives about 1 month in the freezer at 0°F (−18°C). Frozen food stays safe indefinitely; that window is about quality, not safety.