蟹过去还是比较稀罕的食物,现在逐渐走上了人们的餐桌。特别是随着健康知识的宣传普及,人们渐渐知道了蟹的营养价值。蟹不但味道奇美,而且营养丰富,具有清热、散瘀、消肿解毒之功效,对滋补身体很有益处。买螃蟹的诀窍——“五看一捏”(1)看蟹壳。凡壳背呈黑绿色,带有亮光,都为肉厚壮实;壳背呈黄色的,大多较瘦弱。(2)看肚脐。肚脐 Crab in the past is still relatively rare food, and now embarked on the people’s table. Especially with the popularization of health knowledge, people gradually know the nutritional value of crabs. Crab not only delicious taste, but also nutritious, with heat, stasis, swelling detoxification effect, very beneficial to nourishing the body. Buy crabs know-how - “Look at pinch ” (1) Look at the crab shell. Where the back of the shell was dark green, with light, all thick and strong; shell yellow, mostly thin. (2) look navel. belly button