If it is in hot summer, it is easy to go bad if it is soaked overnight, because the environment is sultry and leads to its deterioration, so it can't be eaten. If it is in winter, the indoor and outdoor environment is relatively cold, you can eat it if you soak it for a night, but it is not recommended to soak it for that long. If you put it in the refrigerator for a night, you can eat it, but it is not recommended to do so. Such a long time of soaking is easy to breed bacteria. When the foaming water starts to get greasy, there are obvious bubbles on the water surface, which smells bad, indicating that it has been contaminated by microorganisms and must not be eaten.

In general, it only takes one or two hours to soak the dried russula. Soaking in warm water will be faster, and it will take half an hour. Before soaking the dried russula, wash the sediment, stir the water with your hands or chopsticks to make it rotate, so that the sediment can be thrown out, and then soak the russula in clean water. As for how long it takes to soak, it depends on the size and dryness of the russula. In short, soak it all soft.