At first glance, the small circular dent on the side of a plastic milk jug might seem insignificant—or even like a manufacturing flaw. But this amazing design feature is far from accidental. In fact, it plays vital roles that improve the functionality, durability, and sustainability of the jug. From controlling pressure to aiding in recycling, this clever detail depics how thoughtful engineering can make everyday products more efficient and eco-friendly.
Managing Pressure Inside the Jug
When a milk jug is filled, the liquid inside exerts pressure on its walls. This pressure can increase further due to temperature changes or rough handling during transport. The circular dent works as a flex point, allowing the jug to expand or contract slightly without cracking or warping.
Preventing Breakage During Transport
Milk jugs often make sure a lot of movement during shipping, stacking, and storage. They may be jostled, stacked on top of one another, or exposed to temperature fluctuations—all of which can put additional strain on the container. The circular dent helps absorb sh0cks and impacts, decreasing the likelihood of cracks or breakage. If the jug is accidentally dropped, the dent also offers a bit of “give,” helping to prevent catastrophic spills.
Reducing Plastic Usage for Sustainability
CONTINUE READING NEXT PAGE
The Heart’s Drink: A Recipe from a German Priest
Top 5 Longevity Fruits That Can Add Years to Your Life
How To Make Easy Stuffed Pepper Casserole
Put raw pork roast in your slow cooker with 4 simple ingredients. You won’t believe how tender and delicious this is.
Refreshing Cabbage Salad with Honey Mustard Dressing
How to Remove a Broken Key from a Lock
12 People Who Were Masters at Hiding Their True Intentions
Chicken with Garlic Parmesan Rice
Natural slimming drink: lukewarm water, apple vinegar, ginger and lemon
