It is recommended to choose cold water for boiling Portunus. Cook the swimming crab slowly in cold water, so that the crab legs will not fall off at this time. If hot water is used, put live crabs into hot water, and the crab legs will automatically break due to the stimulation of hot water.

It should be noted here that swimming crabs are also divided into male and female, and female swimming crabs also have crab roe. Therefore, when steaming female Portunus trituberculatus, it is recommended to steam it with boiling water, because the steamed crab roe will taste better.

Boiling with hot water will shorten the struggle time of Portunus trituberculatus, avoid the loss of crab roe, and make the crab roe solidify quickly, so that the steamed crab roe will gather together, crisp and delicious.

No matter whether Portunus trituberculatus is steamed in cold water or boiling water, generally, after the steamer is boiled, Portunus trituberculatus under 3-2 should continue steaming for about 10 minute, and Portunus trituberculatus with 3-4 pairs should continue steaming for about 12 minute, and the steaming time depends entirely on the size of Portunus trituberculatus.

After the water is boiled, if the steaming time is short, the crab's meat is not completely steamed and not very tight, which will also lead to gastrointestinal discomfort after eating.

If the steamed Portunus trituberculatus can't finish eating, it is suggested to cool the Portunus trituberculatus, put it in a fresh-keeping bag, tie it tightly at the mouth of the bag and put it in the freezer, so that it can keep fresh for about 1 month.