Order in the fridge, less waste and fragrant freshness. 4FOOD vacuum jars help keep food fresh. Just a few squeezes of the battery-powered pump and you're done. The airtight lid with a silicone seal holds securely, so nothing leaks out. You can also use the glass jar without a lid in the oven without any worries. Come on, get smart! Assemble your vacuuming assistants in our TESCOMA store and keep your food under control.