The circular dent acts as a flexible pressure zone. It can push outward slightly when the milk expands.
Without it, the jug could bloat, crack, or even burst (especially if the milk freezes). The dent gives the plastic room to adjust—like the jug’s built-in stress reliever.
2. It Reduces Spills
That dent also works like a shock absorber. If the jug gets bumped or dropped during transport, stocking, or grocery-store handling, the indentation helps absorb the impact.
This lowers the risk of cracks and leaks—saving you from a messy kitchen disaster and saving companies money from damaged products.
3. It Strengthens the Jug Without Extra Plastic
The dent is an engineering shortcut that adds durability without increasing plastic use.Continue reading…
