If you prefer not to waste food and keep your purchased groceries or meals as long as possible, a vacuum cleaner such as the Solis Vac Smart 577 will do its best. The vacuum machine is used to remove air and bacteria from the packaging, in order to maintain the natural moisture content of the food and to prevent contamination. For example, you keep meat fresh twice as long, and even crisps and chips are crispy after 2 weeks. The latter is possible thanks to a hose supplied with this vacuum machine. You use them to spare storage busses with, for example, chips, rice or pasta from air and so keep them fresh longer. When you're done, store the compact Vac Smart neatly in a kitchen cupboard.Cook your vacuumed meal in a special sous vide pan to 100 degrees. Do you use an ordinary pan? Then keep an eye on a kitchen thermometer that the water does not get hotter than 75 degrees Celsius. Otherwise the plastic bag melts against the hot walls of your cooking pan.