Mushrooms cannot be eaten overnight.

Whether it is wild or artificially cultivated psyllium, mushrooms, etc., are prone to a lot of residual nitrates. If you leave them in for really a bit too long, you'll just have to bear the pain and throw them away.

"Overnight food" does not only refer to the dishes put overnight, placed more than 8-10 hours, should be considered overnight. And lead to an increase in toxic ingredients in food there are two reasons, the first is because the chemicals in the food produce carcinogens, such as nitrites, even if the heating can not be removed. The other reason is that it is subject to secondary contamination by foreign bacteria when it is placed.

Expanded Information

The growth of mushrooms is mainly divided into two stages: mycelial growth as well as substrate growth. In the mycelium growth stage, the most suitable temperature range is 18~20℃, and the most suitable growth temperature for the substrate stage is 12~16℃.

In all stages of mushroom growth, temperature control is crucial, if the temperature is too high, the development of mycelium will be accelerated, but very weak, this kind of mycelium is easy to aging as well as premature aging, and it will be very easy to open the umbrella when it grows to the fruiting body. If the temperature is below 4℃, both mycelium and fruiting body will stop growing.

Reference? People's Daily Online - Five kinds of overnight vegetables can not be eaten even if you die

Reference? Baidu Encyclopedia - Mushrooms