Live crabs preservation methods: wet cloth covering method, plastic bag method, refrigeration method.

1, wet cloth covering method: put the crab on a moist towel or cotton cloth, and then cover the crab with another moist towel or cotton cloth. This method can keep the crab's body surface moist and prolong its survival time. Be careful to check the humidity frequently to keep it moist.

2. Plastic bag method: Put the crabs into a plastic bag and add some water, then seal the bag. This method can keep the crabs' body surface moist and prolong their survival time. Pay attention to check the quality of water frequently and replace it in time if there is pollution or odor.

3. Refrigerate method: Put the crabs into the freezer of the refrigerator and control the temperature at about 4 degrees Celsius. This method can prolong the survival time of the crabs, but be careful, if the temperature is too low, the crabs may be frozen to death.

Notes on buying crabs

1, choose where to buy: When buying crabs, it is recommended to choose regular seafood markets or reputable businesses. The quality of the crabs in these places is more guaranteed, and you can also learn about the source and quality of the crabs from the merchants when you buy them.

2. Observe the appearance of crabs: fresh and healthy crabs have full shells, bright colors and are not damaged. At the same time, observe the crab's tentacles, which should be straight. In addition, pay attention to the abdomen of the crab, the abdomen is full and the color is bright.

3, check the crab's vitality: when buying, you can gently touch the crab to see if it has vitality. Fresh crabs will respond quickly to being touched, such as lifting their pincers and crawling quickly.