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FOOD STORAGE — HOW LONG CAN YOU KEEP...

SWISS CHEESE, SOLD IN WRAPPED BLOCK — UNOPENED

RefrigeratorRefrigerator
Blue Arrow Blue Arrow 6 months
Freezer Freezer
Blue Arrow Blue Arrow 6-8 months
Tips
  • How long does an unopened chunk of Swiss cheese last? The exact answer to that question depends to a large extent on storage conditions — keep the unopened chunk of cheese refrigerated at all times.
  • An unopened chunk of Swiss cheese may be kept in its original packaging when refrigerating; to maximize the shelf life, do not open the package until ready to use.
  • Properly stored, an unopened chunk of Swiss cheese will last for about 6 months in the refrigerator.
  • Is an unopened chunk of Swiss cheese still safe after the “sell by date” or "best by date" on the package? Yes —the unopened Swiss cheese will typically remain safe to use for about 6 months, even if the "sell-by" or "best by” date on the package expires.
  • If an unopened chunk or block of Swiss cheese has mold on it, is it still safe to eat? Yes — cut away at least 1 inch around and below the moldy area (do not touch mold with the knife) and re-cover the cheese in fresh wrap.
  • Note: if mold appears in a package of shredded, sliced or crumbled Swiss cheese, the entire package should be discarded.
  • To further extend the shelf life of Swiss cheese, freeze it; when freezing, place the cheese in the freezer before the number of days shown for refrigerator storage has elapsed.
  • To freeze an unopened chunk or block of Swiss cheese: Cut the cheese into portions no larger than 1/2 pound each, and wrap tightly in heavy-duty aluminum foil or plastic freezer wrap, or place inside a heavy-duty freezer bag.
  • How long does an unopened chunk of Swiss cheese last in the freezer? Properly stored, it will maintain best quality for about 6 to 8 months, but will remain safe beyond that time.
  • The freezer time shown is for best quality only — Swiss cheese that has been kept constantly frozen at 0° F will keep safe indefinitely.
  • How long does an unopened chunk of Swiss cheese last after being frozen and thawed? An unopened chunk of Swiss cheese that has been defrosted in the fridge can be kept for an additional 3 to 4 days in the refrigerator before using; an unopened chunk of Swiss cheese that was thawed in the microwave or in cold water should be used immediately.
  • Frozen cheese may become crumbly and lose some of its flavor; the thawed chunk of Swiss cheese will be best suited to cooked dishes, such as sauces, soups and casseroles.
  • How can you tell if an unopened chunk of Swiss cheese is bad or spoiled? Swiss cheese that is going bad typically will develop a very hard texture, will darken in color, will develop a strong smell and mold may appear; see instructions above for how to handle mold on an unopened chunk of Swiss cheese.

Sources: For details about data sources used for food storage information, please click here.

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