That round dent on your milk jug isn’t just decorative — it’s a clever design! It helps the jug handle pressure changes, preventing cracks or bursts when temperature shifts cause the milk to expand or contract. It also acts as a shock absorber, reducing damage if the jug falls. Plus, the dent strengthens the jug using less plastic, which saves on costs and materials.
The circle shape is key because it distributes pressure evenly, making it an efficient design that’s easy to mold. The dent even serves as a potential early warning if milk starts to spoil, as the pressure from bacteria causes the dent to pop out.
Interestingly, the dent helps reduce plastic waste and fuel usage during transportation, making it an eco-friendly feature. So, next time you pour milk, remember the unsung hero of your fridge!
