About 2-3 days.
Although it is said that the temperature of the refrigerator freezer area is relatively low, which can effectively inhibit the growth of harmful substances, to prevent food from rotting and deteriorating, and extend the role of food preservation time.
But the crab is a kind of aquatic organism, and the refrigerator does not have the effect of sterilization, so the crab, whether it is live, or has been boiled, in the refrigerator for a long time, there will still be the phenomenon of death and deterioration, so the crab put the refrigerator to freeze, generally can only be preserved for about 2-3 days of time.
2 crabs in the refrigerator chilled dead can still eatNot recommended to eat.
Because such crabs can not be clear time of death, and crabs in the death, will produce a harmful to human health secretion histamine, and with the prolongation of the time of death, the content will gradually increase.
Secondly, the temperature of the refrigerator freezer area, the inhibition of bacterial microorganisms is weak, crabs in the death of which the nutrients will soon be bacterial microorganisms began to decompose, resulting in a decline in the nutritional value of the crabs and the value of food, but also metabolized substances harmful to human health, so the crabs in the refrigerator freezer dead is not recommended to eat.
3 crabs at room temperature or in the refrigerator cooked crabscooked crabs if placed at room temperature, it will soon breed bacterial microorganisms, can be preserved for a long time, so in general, will be placed in the refrigerator to inhibit the role of bacterial microorganisms.
Live crabsThe optimal temperature for live crabs to survive is between 10-25 degrees, so when the room temperature is below 25 degrees, they can be kept directly in the water, but if the room temperature is above 25 degrees, it is still recommended to put them in the refrigerator.
4 Will crabs go bad if left at room temperature for 3 hoursNot usually.
Although it is easy to say that crabs are spoiled, but food spoilage is due to the bacterial microorganisms to decompose the nutrients, and decomposition of nutrients is also need time, so crabs are only put at room temperature for 3 hours are generally not bad.
But it should be noted that, will not go bad is not an absolute guarantee, so in order to avoid any adverse health effects, it is best not to put the crab randomly at room temperature.