Apologies to that one friend who keeps using this “trick” to not lose out on any beer.
If you drink canned beer, you’ve probably heard this advice: Give the can a few taps to prevent it from foaming over when you crack it open. I’ve even heard specific variations on this technique. Don’t tap it on the top; tap it on the sides: That’s what really works. Well, good news for old wives: You can apparently add this one to your list of tales. According to new (legitimate) research out of Demark, tapping your beer can does absolutely nothing.