The Hidden Purpose Behind That Little Dent on Your Milk Jug, And Why It Matters More Than You Think
Most of us don’t give a second thought to that small, round dent on the side of a plastic milk jug. At first glance, it looks like a design fluke—maybe even a manufacturing error. But that unassuming indentation? It’s a brilliant piece of intentional engineering packed with purpose. It’s a built-in pressure valve. Milk jugs … Read more