Can the shell of a luo han guo (monk fruit) be steeped in water for consumption?

Generally speaking, the shell of Siraitia grosvenorii (Luo Han Guo) can be used to make tea. The detailed explanation is as follows:

The shell of Siraitia grosvenorii contains dietary fiber, trace elements, and a large amount of flavonoids, which are beneficial to human health. Drinking tea made with the shell moderately can increase the nutritional value of the beverage. Additionally, the shell contains certain sweet-tasting substances that can improve the flavor of tea, making it more fragrant and rich. If the shell is not contaminated and has been thoroughly cleaned, it can be used together with the fruit of Siraitia grosvenorii to make tea.

However, if the shell is contaminated or shows signs of mildew, insect infestation, or other damage, pollutants, mold, or insect eggs might adhere to its surface. Consuming tea made from such shells may have adverse effects on health, such as causing gastrointestinal discomfort or other health problems. Therefore, in such cases, it is not recommended to use the shells for making tea. Thus, before using the shells of Siraitia grosvenorii to make tea, ensure that the shells are clean, dry, and show no obvious signs of contamination or spoilage.

In daily life, it is recommended to maintain good eating habits and avoid consuming raw, cold, spicy, or greasy foods, which helps maintain overall health.