Fridge storage

How long does Parmesan cheese last in the fridge?

About 45 days for Parmesan cheese. That’s what Well Stockd plans on; the table below has the sources’ own times.

Times are for a fridge at 40°F (4°C) or below. They’re a guide, not a safety guarantee.

How we checked this: the storage times here come from USDA FoodKeeper and USDA FSIS, plus any other source named on the page, and each one is checked against its source before the page goes live. Editorial policy

How long it keeps

Unopened
Up to 6 months refrigerated for a wedge, or the printed date Source: USDA FoodKeeper: Hard cheese (opens in a new tab)
Opened or cut
3 to 4 weeks for a wedge; about 1 week for pre-shredded Source: USDA FoodKeeper: Hard cheese (opens in a new tab)
Freezer
About 6 months (180 days) at best quality. Frozen food stays safe indefinitely at 0°F; the time is about texture and flavor. Source: USDA FoodKeeper: Hard cheese (opens in a new tab)Compare freezer times for other foods on the printable freezer storage chart.
How to store it
Parchment then a loose bag. Save the rind for stock. Cutting 1 inch around a mold spot is USDA-acceptable on hard cheese.
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How to tell if Parmesan cheese has gone bad

Dates are estimates; these are the checks that actually decide it. Don’t taste food to check whether it has gone bad.

Throw it out at once if you see:

  • Mold beyond the rind
  • Ammonia smell
  • Slimy surface

Sources and limits

Even a longer time like this depends on the packaging, the temperature, how ripe the food is and whether it’s been opened.

Well Stockd doesn’t know when this food was harvested, packed, bought, opened or cooked. Write down the date you opened, cooked or refrigerated it, follow the package directions, keep your fridge at 40°F or below, and check the official listing when food safety is in question.

The times in the table come from USDA FoodKeeper, USDA FSIS guidance on refrigerated storage, and any source named beside a row. The number at the top is Well Stockd’s own estimate. It’s a guide, not a safety guarantee: FoodKeeper says storage times are guidelines, and quality varies with how food is grown, handled, shipped and stored. This page was last updated .

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