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1. Keep the food fresh for a long time
2. It will keep the food's taste, scent and freshness in the freezer.
3. Prevent the misture and the scent.
4. Keep the dry-food freshness from the fungus and the bacteria.
5. Prevent non-eating food from decay.
6. Possible to store the food without smell.
7. Keep food flavored quickly ever (10-20 times)
8. Defrost safely within vacuum
9. Save the food waste because of long period storage
10. Protect the picture and photo from discoloration.
11. Protect precious metal, such as silver, from discoloration
12. Keep freshness of vegetable and fruit from bruises and stainless
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