Why can't Qingming sugarcane be eaten?

It's not that you can't eat, but that you should pay attention when eating.

Why does the folk proverb say that "Qingming sugarcane is more poisonous than snake"?

This is a one-sided understanding. Because the temperature rises after Tomb-Sweeping Day, sugar cane polysaccharide is juicy and prone to mildew. After mildew, it will produce toxins, which will lead to gastrointestinal discomfort and other symptoms. "

So, it's not that sugarcane can't be eaten after Tomb-Sweeping Day. It is to remind everyone to pay attention to whether the sugar cane is moldy or not when eating. If sugar cane is not fresh or red hearts are found after cutting, don't eat it.