You put a great amount of effort in making your product look good. But what about the product's overall performance : Is it fresh? How does it taste? How does it smell? Does it do what it supposed to do? The image represented by the package may help sell the product, but product performance keeps customers coming back. And performance is what these vacuum bags deliver. The purpose of these bags is to greatly reduce the flow of gases, flavours or aromas either into or out of the package that may be harmful to the quality of your product. Depending on the type of product and the storage conditions, the type of bag used will vary greatly.