The food saver not only adds a touch to your kitchen countertop; it ' s also a great helper for keeping food and coffee outdoors and travel Airtight to keep coffee or snacks free from, this is a completely sealed food can to stop air,, odors and other smells from seeping in; it will stay sealed for up to a month left unopened More than coffee stash peppercorns, spices, anything you want to keep fresher for longer in this food storage container Protect your food by storing in vacuum-sealed food storage jar to keep fresher for longer; simply the lid to vents the air inside; this limits oxygen exposure and helps keep coffee from spoiling keeps your dry goods safe in food storage containers PP+glass; hand wash canisters as integrated vacuum pumps are not dishwasher safe