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Title: They do work, you just can't abuse them.
Review: After reading the reviews of this item I was skeptical it would be both durable and useful, but after using them for two months I can say that they really do work on a variety of food and non-food items, and they are pretty easy to use with the FoodSaver. I would NOT suggest putting these in the dishwasher. I can tell from the kind of plastic it's constructed of that it wouldn't last 20 cycles without cracking. I've been gently washing them out by hand with warm water and a little bit of detergent, and it takes only seconds to get them clean. My one gripe with this product, and the reason I didn't give it a 5/5 star rating, is because there's no way to tell if the jar is sealed by just looking at it. You have to give the lid a little tug to test the seal. If you have a lot of these jars, it can be annoying to not know at a glance whether something is sealed or not. Other than that, these jars work wonderfully.
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