Description : What do you think makes the onion sting and why do we tear it when we slice it?
Last Answer : As we cut the onion, a tear-stimulating substance is released. This substance is called lachrymatory factor synthase. During cutting, this material mixes with the amino acids in the onion and reacts to form sulfinic ... description = ''] https:///wp-content/uploads/2017/01/csipos-hagyma.jpg [/ img]