1, no, Xueyan can't eat raw or undercooked. It is suggested that Xueyan should be soaked in clear water for 6 hours, washed with clear water for 3 times, and impurities such as bark should be picked out with tweezers. Stew in a saucepan for 30 minutes. Don't stew for more than 1 hour, the snow swallow will turn into water.

2. If the snow swallow is soaked too much and cannot be eaten at one time, it is recommended to drain the soaked snow swallow, put it in a bowl and seal it with plastic wrap or put it in a fresh-keeping box, and put it in the refrigerator for 2~3 days. The soaked snow swallow should not be kept for too long, so as not to breed bacteria and deteriorate.