This clever little indent also helps dairy companies manage their production costs. A report from June 2017 by product development technologists Lauren Joshi and John Cowan pointed out that milk bottles made from high-density polyethylene (HDPE) tend to shrink after they’re made. This shrinking is almost impossible to avoid in the milk industry. By having the indent, companies can prevent milk spills and make sure bottles look full, which are both very important for keeping customers happy.
So, the next time you grab a milk jug, you’ll know that the simple circular indent is actually a clever design feature that helps keep your milk safe, prevents spills, and ensures you get exactly what you paid for!
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