Freezing Method, And Method And Device For Drying Food, in Particular Fruits And Vegetables

摘要

This invention refers to a method for freezing food, in particular fruit and vegetables, and a method for drying food, in particular fruit and vegetables, by exposing the food to a negative pressure and removing water from the food while exposed to the negative pressure. The present invention also refers to a device for drying food, in particular fruit and vegetables, comprising a negative pressure chamber, a vacuum pump for generating a negative pressure in the negative pressure chamber, and a liquefier connected to the negative pressure chamber by a closable valve. The present invention provides a method and a device for freezing or drying food, in particular fruit and vegetables, which maintains product properties of the food, such as color, taste and structure, as far as possible and which at the same time is as time-, energy- and cost-saving as possible, by conditioning the food during the methods by applying an electric field and in that the device comprises at least one capacitor for generating an electric field.