Most People Will Go Their Entire Lives Without Ever Knowing What the Circular Dent on the Side of the Milk Jug Is For

The flex panel absorbs part of the shock

Pressure is redistributed across the container

The risk of the jug bursting or popping its cap is reduced

Without this feature, milk jugs would be far more likely to split open during transport, stocking, or everyday handling—especially when full.

Helping the Jug Keep Its Shape