Absolutely! Unopened, it can be kept up to the expiration date marked on the can.
Yes, it is perfectly safe to eat canned crab meat without cooking it, normally it is already cooked ahead of time when canned.
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Crab meat is typically fully cooked in the canning process and should be safe for sushi.
If its the day of the expiration date yes but not after.
Yes, it is dangerous. Cook it first.
An unopened can of canned crab has a pantry shelf life of 3 to 5 years. An opened can be refrigerated for 2 to 3 days.
Some canned meat has been found to contain heavy metals. It can come from an unlined can. It can also come from a heavily contaminated body of water.
Some canned foods are pasteurized and some are not. For example, crab meat in a can is pasteurized, while peas are not.
Lobster meat comes from a lobster. Crab meat comes from a crab. Texture wise: Lobster meat is tougher than crab meat and not as sweet.
Meat In A Can?
Physically yes you can. Most meat doesn't do well in the microwave for anything but defrosting since it's basically boiling the meat.
If you are talking about shelf stable canned crab meat, the date on the can is likely the 'best by' date and not an expiration. If the can is unopened, has been stored properly and is not swollen or damaged, it is likely safe to eat, but the palatability of the crab meat will deteriorate over time. The processor will not guarantee the product beyond the recommended 'use by' date.
In an average medium size crab, there is about ½ cup of meat. There usually isn't a lot of meat in crabs.