The Hidden Purpose Behind That Little Dent on Your Milk Jug — And Why It Matters More Than You Think

There’s another reason manufacturers include that dent — it allows them to use less plastic while still maintaining a strong, stable jug.

How does that work? Think of it like an arch in architecture: by curving and shaping the plastic in the right way, engineers can strengthen the jug without needing to thicken the walls. That saves money, materials, and energy — and ultimately makes the jug more eco-friendly.

In fact, many companies are actively working to reduce the environmental footprint of their packaging, and this tiny design element plays a part. Sustainable packaging isn’t just about cardboard straws and biodegradable bags — sometimes, it’s about the quiet innovations you don’t even notice.

Easier to Crush and Recycle — A Win for Waste Reduction

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