De 15 to more than 20 kilos. It is the mass of food that every Belgian throws in the garbage every year. These include dry goods, preserves and other liquid bottles with a long shelf life. But that's it: they are struck by the words "prefer to eat before …". And after the specified date, they no longer inspire the trust of many consumers who throw them. Applying this date of minimum durability (MDD) by manufacturers is not mandatory for a range of goods such as sugar, cooking salt, vinegar or alcoholic beverages of more than 10º.