once the tremella lotus seeds stay overnight, the nutritional components will be reduced and harmful components will be produced, so it is not recommended to use them overnight.

Because both the tremella cultivated indoors and the tremella cultivated in the wild of basswood contain more nitrates, if it is stored for more than 12 hours after cooking, the nitrates will be reduced to nitrite under the decomposition of bacteria.

When people drink this soup, nitrous acid naturally enters the blood circulation. Red blood cells in the blood contain hemoglobin, which can carry a lot of oxygen for the body's needs.

However, nitrous acid has the opposite effect, which oxidizes normal hemoglobin in human body to methemoglobin, losing the ability to carry oxygen, resulting in the lack of normal hematopoietic function in human body, so please drink the prepared sugar water as soon as possible.