Chopping onions often leads to teary eyes due to a chemical reaction causing discomfort. However, a TikTok user, @yoshiandfrndz, shared a hack to prevent this issue. By soaking the onion in hot water for a minute before cutting, the water changing color indicates readiness. This method claims to eliminate tears during chopping.
The technique sparked various responses, including suggestions like sharpening the knife before cutting or avoiding cutting the root directly. Another tip mentioned chilling onions before use to prevent eye irritation. Additionally, some recommended using onion goggles as a practical solution.
The Atlantic Eye Institute supported these strategies to reduce eye irritation while chopping onions. The science behind the burning sensation involves a chemical in onions called suberin, releasing enzymes and creating sulphuric acid upon cutting. The guidance stresses keeping the root intact to minimize exposure to suberin and using a sharp knife to reduce fumes released during cutting.
Understanding the chemical reactions behind onion-induced tears can help home cooks apply practical tips to make food preparation more comfortable and efficient.