Crab steamed and frozen for 20 days can still eat.

If you want to save the steamed crab, you can put it in the refrigerator to freeze, but when you save it, you have to put it in the freezer to seal it well, because the cooked crab and fog, dew contact will produce bad substances, so the next day when you are ready to eat it must be boiled again with boiling water, you have to wait until the water boils and then boil it for half an hour, to kill the microorganisms and bacteria inside the crab. before they can be eaten.

Healthy eating crab notes

1, will be frozen crab thawed in advance: eat frozen crab and eat meat, before eating need to be completely thawed, if the crab directly out of the cooking, the internal ice water will be contained with the cooking process of steaming and cooking seeped into the crab meat, but is not conducive to health. Thawing method: Put the frozen crabs into a basin, add appropriate amount of water, and then sprinkle a small amount of edible salt into the basin to speed up the thawing process.

2, frozen crab suitable for frying, smothering: the taste of frozen crab is certainly not as good as fresh crab, its crab smell will be much heavier than the fresh crab, so in order to avoid excessive fishy flavor affecting taste, it is advisable to take the appropriate way of cooking, frying, smothering is more recommended. This way the fishy flavor is lighter and the taste is better.

The above content reference? Baidu Encyclopedia - Crabs