Correctly Doing Vacuum

Some reviews complain about the Vacuuming and sealing. I do not find that at all. The vacuum is a bit loud. But vacuums are. I've not found one that isn't. I am paranoid and double seal all my bags, of course, it stopped after several times, but i know it is normal. Because the seller told me there is a protection design. By the way, some guys may grasp wrong way, the bag should be loaded in the correct position, just like the picture i showed.otherwise,it's impossible to do vacuum and make air out of bag. I really haven't seen any problems with this.Anyway,it's important to grasp the method. Thanks to the email from seller.

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