2. Loofah is not easy to turn black after peeling and floating in water. Luffa is one of the most easily oxidized vegetables in melons and vegetables, and it will get old quickly after being peeled in the air, so it must be eaten fresh.

3, towel gourd skin, Chinese medicine name. It is the pericarp of cucurbitaceae plants Luffacylindrica(L.)Roem. and Luffaacutangula(L.)Roxb. Throughout the country. Has the effects of clearing away heat and toxic materials. Commonly used for golden sore, carbuncle swelling, furuncle, bench sore.