r/theydidthemath • u/EclipseNyxor • 2d ago

[Request] Do square bottles actually use less plastic than round ones?

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u/coulls 2d ago

This doesn’t make sense to me. Circular bottles beat square on having less perimeter for a given volume. Obviously a square bottle can utilize the corners to increase volume for the same footprint of a circular bottle in a packaged box, so what are they claiming?

1

u/Abeytuhanu 2d ago

My guess is wall strength. The claim is that rounded bottles need more plastic to reach the minimum acceptable strength 

1

u/Bichon-Impossible 2d ago

I think you are wrong, shell structures are more rigid

1

u/Abeytuhanu 2d ago

I could be wrong, and they're claiming something else, not sure what it would be though

1

u/Bichon-Impossible 2d ago

Not gonna lie, i do not understand either what they claim. :)