When people say they hate cilantro, they often attribute this food feeling to a soapy aftertaste. Thanks to a new video from SciShow, we finally know why cilantro tastes like soap for some 4-14 percent of the population.

"How cilantro tastes to you has a lot to do with your genes," says SciShow's Hank Green. He explains that after conducting a few separate studies, scientists were able to pin down most cilantro haters as people with a shared group of olfactory-receptor genes, called OR6A2, that pick up on the smell of aldehyde chemicals. Aldehyde chemicals are found in both cilantro and soap. Uh, yummy?