How to Cut Onions Without Tears

Tears are produced when cutting onions because they contain a chemical substance called propyl sulfoxide. When the onion is cut, this substance is released and irritates the eyes, causing tears. The following are some methods to reduce or avoid tearing while cutting onions: 1. Refrigerate the onion: Place the onion in the refrigerator for a period of time. The low temperature will slow the evaporation of propyl sulfoxide, thereby reducing irritation. 2. Cut off the bottom first: Start by removing the root end of the onion, as it releases less propyl sulfoxide. 3. Cut under water: Submerge the onion in cold water or cut it under running water to reduce the chance of irritants reaching the eyes. 4. Microwave heating: Microwave the onion for a few seconds before cutting, which can destroy the compounds that cause tearing. Note that although these methods cannot completely eliminate the irritation, they can significantly reduce discomfort. If eye irritation occurs, rinse with clean water and avoid rubbing the eyes.