Fans in food industry can be of both axial and centrifugal type. Depending on their location and their role inside the process, low, medium or high pressure types can be requested. As they are in a food environment, the material of the fan tends to be either in a stainless steel construction, or in aluminium. Certain epoxy coatings can be also suitable in some processes. In the food processing industry, fans are usually needed for drying (blowers) or exhausting the water content from the raw food. For example in pasta or milk-powder production, hot gasses have to be blown onto the food in order to get rid of all water content, which guarantees the food is conserved before being packaged.