These are on every large bottle I buy (this is Michigan, USA) whether it's milk, orange juice, apple juice, lemonade...
The round indents are right in the middle of one or two of the sides, about 3 inch diameter, but indents in diffent bottles very in depth from zero to one inch. Cross section: \___/ (cone sides with flat base).
I've wanted to know for ages and I can't think of a good reason for them - I thought initailly to do with manufacturing process of the bottle... but there would be better ways to add stiffness, and does not explain the varying depths.
There must have a good answer!
2006-10-25
04:36:13
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6 answers
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asked by
mazza
1