Chopping onions often brings tears to our eyes, leaving many wondering why this happens. It’s not about emotion — This Vegetable releases a natural chemical that irritates your eyes. When the onion is cut, enzymes and sulphur compounds mix to produce a gas that reaches your eyes, triggering a reflex that makes them water. Understanding this can help you cook more comfortably while still enjoying the flavour onions add to countless dishes. Simple precautions can reduce the tears and make cooking easier. With a few easy tips, you can chop this vegetable without constantly wiping your eyes.
Why Onions Make You Cry
When you cut an onion, it releases a gas that irritates your eyes. This gas mixes with the water in your eyes and causes a mild stinging sensation, making your eyes produce tears to protect themselves. It’s like yellow, red, and white have more of this chemical, so they make you cry more. Sweeter onions, such as green onions, have less of it and usually cause fewer tears. The stronger the onion, the more noticeable the effect. That’s why some onions can make even experienced cooks tear up quickly while chopping.
How to Prevent Onion Tears
There are simple tricks to reduce tears while chopping it. Chill the vegetable in the fridge before cutting, or slice it under running water to limit the gas reaching your eyes. Using a sharp knife reduces cell damage, which lowers the amount of irritant released. Wearing kitchen goggles or working near a fan can also help. Some specialty tear-free varieties are now available, which naturally release fewer chemicals.
