Throwing a holiday shindig? Here’s a cool party trick: Take a clove of raw garlic, slice it in half, put it in a garbage bag, and recruit an intrepid volunteer to stick their feet inside the bag. In an hour, they will report tasting hints of garlic—and no, it’s not because they overdid it on the garlic dip.

In their latest Reactions video, the American Chemical Society explains the science behind this stunt. According to them, the molecules responsible for garlic smell can actually penetrate your skin, enter your bloodstream, and travel to your mouth and nose. Learn more by watching the clip above.

[h/t Reactions]

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