When we cut onions
History of Moderator - Lisboa, Portugal
When we cut onions, two cells present in them are released: one rich in sulphides and the other in enzymes. When these cells mix, a reaction occurs that produces an acid called sulfenic acid. This acid is transformed into gas and, when in contact with water, generates a weak solution of sulfuric acid. As the eyes are always wet, the solution formed causes irritation in the eyes, which causes tears. That's why we cry when we cut onions... Did you know?
