Pac 'n Vac food storage boxes deliver instant vacuum freshness that keeps food safe and fresh for up to 8 times longer than ordinary food boxes. With Pac 'n Vac instant vacuum boxes there is no need for suction devices, electrical gadgets or special sealed bags. You simply press down the clip locks at the side, close the patent valve on the lid and press down on it a few times. By removing air you remove bacteria that damages food, and the resulting vacuum keeps fresh or cooked food fresh and safe for significantly longer. By cutting the amount of waste created by throwing away food that is past its best, Pac 'n Vac vacuum food storage boxes easily pay for themselves. They help you save in other ways too. With fewer trips to the supermarket you make a saving on transport or fuel. And because Pac 'n Vac vacuum food boxes are freezer, microwave and dishwasher proof, you don't need separate sets of boxes or bowls - you can create your food, freeze it and microwave it all in the one container.