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<p>[QUOTE=&quot;desertgem, post: 486092, member: 15199&quot;]I don&#039;t see where they could do any downside. The bags are more costly than the non vacuum type of ziplocks, but not much. If a person is inclined to use regular bags, this would be a definite improvement. Since many say modern slabs are closer to being airtight, I would probably&nbsp; extract additional air over a several day period to allow diffusion of air in the slab to evacuate it before storing it. I suspect these bags have a better zipper than the regular bags</p><p><br /></p><p>It isn&#039;t foolproof, but it is an additional barrier. I would have no hesitation in using it,</p><p>but mileage may vary.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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