At present, there are two kinds of common frozen king crabs in the market, namely cooked frozen and raw frozen. The former is to freeze the cooked king crabs, and the latter is to freeze the caught king crabs directly, but no matter which kind of freezing method, they can continue to be eaten for a certain period of time.
When the frozen king crab is preserved, it should be kept at-18℃. If the fresh king crab is preserved, it should be stored at 0℃ ~1℃. The storage period of this king crab is generally one week, and the storage time after thawing is three days.
When buying frozen king crabs, it is necessary to pay attention to distinguish between raw frozen crabs and live frozen crabs. Most of the live frozen king crabs actually died during transportation, and this king crab is not recommended. If you want to distinguish it, you can smell the king crab. After the frozen king crab is frozen for too long, it will produce certain ammonia gas, and the king crab will have a urine smell.
Generally, the king crabs we bought are now frozen and preserved by some merchants in advance.
Then, if I can buy fresh king crabs and want to keep them, how can I keep them, so that they will not lose their fresh nutrition?
The following three ways to preserve the king crab will not only make the umami taste of the king crab exist, but also won't let it lose its umami taste.
Preserve king crabs in the refrigerator. When buying king crabs, we must buy fresh king crabs and tie their feet with ropes. Then put the king crab in the refrigerator, and the temperature in the refrigerator needs to be kept at 5~ 10, and then cover the king crab with a wet towel. This can keep the king crab alive in the refrigerator.
You can also prepare a 50 cm high plastic bucket, put the king crab in it, and then inject water into it to submerge the king crab by half, which can moisturize the king crab. You can't drown all the king crabs with water, because there is no aerobic equipment inside.
If the king crab we bought is not going to be cooked and eaten now, we can vacate our own bathtub and put it in the bathtub, because the bathtub is smooth around, so the king crab can't escape. Just drown the water in the bathtub into the crab's claws. Save the king crab in this way, so the king crab will never die.