In the food and beverages processing industry, Leister hot-air tools are used for all kinds of applications. Hygiene plays an important role when processing food of any sort. Machinery and equipment have to be cleaned regularly. After cleaning, they are dried and sterilized with hot air. Processing operations such as coffee roasting or fruit dehydration can be sped up or are only possible in the first place thanks to hot air. Following production, the visual appearance of food (e.g., chocolate or candy) can be enhanced by using hot air. This is what brings out the characteristic sheen of such products.