（一） 买来河虾，将其放入装有锯末子的塑料袋内，将其拌好，放到冰箱的冷藏格内，袋子要打开（如锯末子太干，可用浇花用的喷壶喷点水）。 （二） 如找不到锯末子，可将毛巾用水浸湿，再拧干，毛巾呈微湿的状况，用饭盒或塑料硬盘，在底部铺一层毛巾，放一层河虾。河虾不宜放 (A) buy shrimp, put it into the plastic bag with sawdust, mix well, put it in the refrigerator freezer, the bag should be opened (such as sawdust too dry, watering can be used watering can Spray water). (B) If you can not find the sawdust, the towel soaked in water, then wrung the towel was slightly wet condition, with lunch boxes or plastic hard drive, at the bottom shop a layer of towels, put a layer of shrimp. Shrimp should not be put