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Title: They do crack or implode
Review: I have some of these I bought years ago and some larger that are smoked colored they don't make anymore. I never had a problem with those buttttttttt. I bought three sets of these and have had one medium size actually implode at the bottom and one small one crack across the bottom. If you buy any be prepared for that to happen and possible food loss. That can become expensive plus renders the external port on a foodsaver useless except for sealing Ball or Mason jar lids on glass. Now for long term storage that works well but if you want fairly frequent access to the food doesn't work well (using a lot of lids). I was truly disappointed in these.
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