To cut an onion without crying, several effective methods can help reduce or prevent eye irritation caused by the onion’s sulfur compounds:
- Use a sharp knife: A sharp knife slices cleanly through onion cells, releasing fewer irritant gases than a dull knife that crushes cells
- Chill or freeze the onion: Placing the onion in the freezer for 10–15 minutes before cutting slows the release of tear-inducing enzymes
- Cut near a fan or under a kitchen vent: A fan blowing away from you or an extractor hood can carry away the irritating gases before they reach your eyes
- Wear goggles: Specialized onion goggles or any tight-sealing eye protection prevent gases from reaching your eyes, effectively stopping tears
- Keep the root end intact: The root has a higher concentration of irritants, so leaving it uncut until the end reduces tear production
- Cut onions under running water or submerge chopped pieces: Water can wash away the sulfur compounds, reducing their effect
- Other tips: Chewing gum or holding a piece of bread in your mouth while cutting may absorb some irritants, though effectiveness varies
Combining these methods-such as chilling the onion, using a sharp knife, and cutting near a fan or wearing goggles-provides the best protection against crying when cutting onions
