Reminder: boiling water before eating
Generally, each kilogram of toon sprouts contain more than 30 milligrams of nitrite, while the old leaves contain 55 milligrams of nitrite per kilogram. The public if untreated before eating, eat more may cause food poisoning. But before eating with boiling water, scalded, scalded parsnip buds in the content of nitrite is only 5 milligrams per kilogram, there is no harm to the human body.