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<p>[QUOTE=&quot;GDJMSP, post: 1793678, member: 112&quot;]As I mentioned above, there is a very big difference between airtight and watertight. It is much, much easier to make something watertight than it is to make something airtight.</p><p>&nbsp;</p><p>Sure that pop bottle will keep the liquid in the bottle and none will escape. But it won&#039;t keep the air in. Those carbonated bubbles begin escaping as soon as that bottle is sealed. All it takes is time and all of those bubbles will be gone.</p><p>&nbsp;</p><p>Now you might be surprised but even aluminum pop cans, and they are lined with plastic so they are doubly sealed, even they don&#039;t keep the air in. And yeah, I was surprised by that too, but I&#039;ve seen it with my own eyes.[/QUOTE]</p><p><br /></p>

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