Why Do Onions Make Us Cry? Exploring the Science and Solutions

The video explores why onions make people cry and tests various methods to prevent it. Social media users suggest techniques like holding a spoon in the mouth, using a nose clamp, and chewing gum, but none prove effective. A botanist explains that cutting onions releases a volatile sulfur compound, causing tears. An experiment with potassium permanganate visually demonstrates the presence of sulfur when onions are cut.

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