How long does cheese last?

Hard cheeses generally keep for several months, while softer cheeses keep from one to three weeks after opening.

Form	Where	Official window
hard cheeses	refrigerator	several months
softer cheeses	refrigerator	one to three weeks after opening
unopened packages of process cheese	refrigerator	up to six months
opened packages	refrigerator	three to four weeks
frozen	refrigerator	two to six months

The official discard rule

Throw out soft cheeses that have been at room temperature for more than four hours.

These are the official windows; when in doubt, follow the source linked below.

Grounded in: hgic.clemson.edu. Every window above appears verbatim in the linked sources.

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