Other uses: larger amounts of pasta, coffee, tea, sugar, chips, candies, cereals, cookies, popcorn, crackers, oatmeal, rice, flour, jerky’s, protein powders, and all your bulk items that often spoil before you use them. Refrigerated items such as cheese, lettuce, parsley, basil, cut onions, scallions, zucchini and most leafy vegetables will last 2x longer. Breadvac prevents weevil & bug infestations.  TO OPEN Grip handle and put thumb on the press button. Press down on button & twist cap to the left and pull cap up and remove.   TO CLOSE Grip handle and put thumb on the press button and align cap arrows with buttons on the body. Press down on button (be sure to keep the cap level) and lower the cap down and twist to the right to lock cap into position.