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4 answers

It is true about the temperature and air of the water but these bottles were not meant to be used after opening and when the companies were asked they said it was unsafe to do so.

The plastic is decomposing and the more use the more it leeches out and becomes deformed.

2006-06-19 21:06:52 · answer #1 · answered by Man 6 · 0 0

Unlike most other materials, water expands as it freezes. When water is frozen in a plastic bottle, the expanding ice forces the plastic walls of the bottle to deform. Since the process is not exactly uiniform, the shape of the bottle will be irregular as a result.

2006-06-19 08:07:20 · answer #2 · answered by Anonymous · 0 0

When you filled the bottle you probably left some air at the top. As the air cooled in the fridge it contracted causing a slight vacuum. The sides of the bottle would have been sucked in slightly causing the deformity. I bet when you unscrew the lid it makes a slight sucking sound as air rushes in.

The cooling of the water itself would have made little difference unless it actually froze, whereup it would expand pushing the sides of the bottle outwards.

2006-06-19 08:19:43 · answer #3 · answered by uselessadvice 4 · 0 0

As water cools, it expands.

The cooler water pushes out on the bottle, warping it into that shape.

2006-06-19 08:05:47 · answer #4 · answered by John C 5 · 0 0

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