Eating five fruits and vegetables, wash hands, do not snack between meals etc. It does not tell you that this device is an indispensable to: significantly increase food preservation (especially if you are offered at Christmas as foie gras which we do not know what to do), improve hygiene in the kitchen and in the fridge (or freezer), save space. A tip: do not hesitate to pay the price: with this model, efficiency and simplicity are at RDV. It is elegant, and it takes a little space, just to be effective, do not overheat as the first prize, and reflect more than just a large food of butter. In short, this device is far from a gimmick.