Gate crabs are usually preserved in the following ways, if they are purchased in the general market without bundling, the vitality of the better, you can place the crabs in an empty bucket, slightly put some water, do not overflow the crabs can be, and then placed in a more ventilated and cool place, generally can survive a 5-7 days; if the crabs purchased in the large supermarkets, brand stores/shops were bundled, you can sprinkle some water, and then place them in the refrigerator to keep the freshness layer. If you buy crabs in large supermarkets, brand specialty stores/shops, you can sprinkle some water on them and place them in the refrigerator in the fresh layer with a wet towel on top, so they can usually survive for 3-5 days.

Then if it is a green crab, the preservation method can not be placed in the refrigerator, put the refrigerator is easy to die in a short period of time, the green crab is generally below 5 degrees, 39 degrees above the easy death of a short period of time, so the green crab is generally placed in an empty bucket, do not put water, the top of the slightly sprinkled with some salty freshwater (water + a very small amount of salt), in the ventilation of the cooler place can be placed, the general survival of the 3-5 days or so no problem.

Of course, whether the crab can be kept for a long time, but also depends on the hairy crab vitality status. The weaker ones can be consumed first, and the more vigorous ones can be stored for some days, during which the crabs may "lose meat".