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Gunther Heller

Do Cheese Curds Go Bad?

Source: USDA FoodKeeper and FSIS · last verified November 2026

Illustration of cheese curds
Cheese curds Per USDA FoodKeeper
Counter
Not recommended
keep it cold
Fridge
2 weeks
at or below 40°F (4°C)
Freezer
4 months
at 0°F; quality, not safety
Quick answer

Yes. Cheese curds last 2 weeks in the fridge and 4 months in the freezer. After that, or sooner if stored badly, they spoil: watch for the signs below.

How to tell if cheese curds are bad

Smell

Ammonia or a sharp sour smell beyond the cheese's usual aroma.

Texture

Slimy surface, or very dry and cracked all the way through.

Colour

Darkened or yellowed edges, or new colours that are not part of the cheese.

Mould

On hard cheese, cut 1 inch around the spot. On soft or shredded cheese, discard.

Cheese curds past the expiration date

Best-by and sell-by

FoodKeeper gives unopened cheese curds 2 weeks in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.

Past the date

Cheese curds past their best-by date are usually safe if stored well; check smell, look and taste before using.

How to keep cheese curds fresh longer

  • Wrap in wax or parchment paper, then loosely in plastic, so it can breathe.
  • Store in the cheese drawer or a lower shelf at 40°F (4°C) or below.
  • Use a clean knife each time to avoid introducing mould.

More about cheese curds

More “does it go bad?” answers, A–Z →

FAQ

How long does it take for cheese curds to go bad?
2 weeks in the fridge, per USDA FoodKeeper.
Can cheese curds expire?
FoodKeeper gives unopened cheese curds 2 weeks in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
What happens if you eat bad cheese curds?
Usually an unpleasant taste rather than illness, but discard anything mouldy, rancid or smelling off.
How do you keep cheese curds from going bad?
Wrap in wax or parchment paper, then loosely in plastic, so it can breathe.
Numbers on this page come from USDA FoodKeeper and FSIS guidance. Last verified November 2026. How we verify our data · Report a wrong number