Now many people choose to buy crabs online and deliver them by express delivery. However, due to the long distance, it takes a long time for crabs to be delivered by express delivery. At this time, it is suggested to tie the crab with a rope, then put it in a foam box filled with crushed ice or ice bags, then cover it with ice and seal the box, so as to prolong the preservation time of the crab. If properly preserved, it can generally be kept fresh for about 2-4 days, which can ensure the freshness of crabs delivered by express delivery.

Can the crabs delivered by express delivery be eaten after death? Not recommended.

If the crab dies during the express delivery, it is not recommended to continue eating it, because the digestive tract of the crab contains a lot of bacteria and microorganisms. After the crab dies, the bacteria and microorganisms in the body will multiply to produce corresponding toxins, and the protein in the crab will slowly decompose, which greatly reduces its nutritional value. This kind of dead crab not only tastes bad, but also has an impact on health after eating, and there is a risk of food poisoning.

3 crabs need to be put into the water whether they are bought back or not.

If you don't eat crabs immediately after you buy them, you'd better put them in water, because crabs themselves belong to aquatic animals, and they can better maintain their lives in water. However, it should be noted that the water level should not be too high when releasing water, generally reaching half of the crab body. If the water level exceeds the crab, it will easily lead to hypoxia. It's best to use a deeper bucket to put crabs into the water, so as to prevent crabs from climbing out. In addition, crabs can regularly feed small fish and shrimp. For crabs with good freshness, this can be marinated for about 3-5 days.

Crabs can be kept fresh in the refrigerator for several days, about 2-3 days.

Fresh crabs bought can also be stored in the refrigerator, which can generally keep fresh for about 2-3 days. But pay attention to tie the crab with a rope and put it in the refrigerator, so as to reduce its heat consumption, and then cover the crab with a wet towel to provide it with water, so as to keep the crab fresh.