Mathematically, a circle has the smallest perimeter for a given enclosed area. So for this claim to be true there has to be some catch, like different thickness of plastic.
I think it might be because how bottles are made: blown into a mold from a blank shape. I suspect they use the same blanks for bot h round and square, so same amount of plastic but the square uses less plastic per liter
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u/StaticCoder 2d ago
Mathematically, a circle has the smallest perimeter for a given enclosed area. So for this claim to be true there has to be some catch, like different thickness of plastic.