2. Hairy crabs bought in the market: 1-3 days. If the hairy crabs are bought from the market, they have been bumped by long-distance transportation, and they may have been stored in the shops of merchants for several days, so their vitality is reduced, so the storage time is greatly reduced. Generally, the tied hairy crabs can not die for 1-3 days as long as the temperature and humidity are paid attention to.
It is generally recommended that the hairy crabs bought in the market should not be stored for too long, and it is best to eat them on the same day, so as to avoid the hairy crabs from dying when they are left standing, and the dead hairy crabs will release harmful ingredients such as histamine and cannot be eaten.
2 Storage time of cooked hairy crabs: 1-2 days. If cooked hairy crabs are used, they can usually be stored for 1-3 days. The specific storage methods are as follows:
1. Refrigerate and store cooked crabs. If you can't finish eating them, you can seal them with plastic wrap and put them in the freezer.
Generally, the temperature of the refrigerator is between 5-8 degrees. Although it can reduce the activity of bacteria, it can not completely inhibit the reproduction and decomposition of bacteria, so it can only be stored for 6-8 hours. If it is stored for more than this time, it may deteriorate.
For example, crabs at noon are intended to be eaten at night, so they can be preserved like this.
2. Frozen storage in the refrigerator If you want the cooked hairy crabs to last longer, you need to put the sealed crabs in the frozen layer of the refrigerator.
When the temperature of the frozen layer is between minus 4-24 degrees, the activity of bacteria is inhibited, and it can hardly reproduce and decompose. Generally, it can be stored for 1-2 days, and the hairy crabs will not taste good after this storage time.
How long can crabs be kept in ice? About 5-7 days.
Generally, live hairy crabs are preserved with ice during transportation and sale. Ice cubes will reduce the environmental temperature of preserved hairy crabs to 2-8 degrees, which is almost the same as that of the refrigerator. Generally, hairy crabs can survive for 5-7 days as long as they pay attention to ventilation, keep the air moist and don't be too bumpy during transportation.
4 How to preserve live hairy crabs 1. Preserve in a cool environment If the local temperature is below 20 degrees Celsius, the bought hairy crabs can be stored in a cool place at home.
First, tie the hairy crabs and put them into the basin, then put a shallow layer of water, and be careful not to let the water cover the hairy crabs' mouths, so as to ensure the hairy crabs' breathing. You don't need to drain water, but you should cover the basin with moist aquatic plants or vegetable leaves to ensure the moist environment in the basin. Then put the basin in a cool place, so that it can be stored for 1-2 days.
2. Refrigeration and preservation: Pack the bound hairy crabs in uncovered boxes, then cover the boxes with semi-dry wet towels and store them in the refrigerator at 3-6 degrees Celsius. This will keep it for 2-3 days.
3. Storage in water tank This storage method is suitable for merchants selling hairy crabs. Generally, hairy crabs are put in a water tank with clean water and an oxygen device, and they can be fed during the period, which can generally be stored for 5- 10 days or even longer.