Experts said that after washing the renovation processed potatoes, the potatoes will have been long buds into "no bud" potatoes. Potatoes in the long-term storage process will produce anemone alkali, after eating will be poisoned, old potatoes after simple treatment is only the surface of the buds removed, and some of the green tubers may still have residual anemone alkali, eat a very small amount of anemone on the human body does not necessarily have obvious harmful effects, but if a time to eat into the 200 milligrams of anemone alkaloids (about half a couple of potatoes have been eaten green, sprouted) after 15 minutes to 3 hours onset. The earliest symptoms are itching in the mouth and throat, pain in the upper abdomen, and nausea, vomiting, and diarrhea. Old potatoes after a simple treatment is only the surface of the buds removed, and some green tubers may still have residual toxins, in addition to washing renovation when adding certain cleaning substances, but also on the body will have a direct harm.