While some things on this list look rather unique, others are more mundane, like this carton of milk. Still, here’s something we bet you’ve never thought about. What is that big hole for in the side of a milk carton? Here’s what the internet had to say.
Apparently, these dents are rather helpful if you accidentally happen to drop the jug. The indent along with the semi-flexible plastic allows the jug to take a harder hit. Also, say you want to freeze the milk, the dents allow the jug to expand as the milk freezes and pop back once you thaw it out. It’s simple science.