Cold salad is polluted when it is processed. Even if it is refrigerated, it may have gone bad after a night, so it should be cooked and eaten now.
In addition to cold salad, overnight seafood, marinated vegetables, half-cooked eggs, boiled water, tremella, leafy vegetables, overnight tea and overnight soup are not good for your health.
Source: Science and Technology World Network
So it's best not to eat ~ ~
1, temperature: the temperature of planting lotus roots should not be too low or too high. If it i