In addition, the motors are easy to clean and have a smooth surface with no grooves in which dirt could accumulate.

In the course of the tests, the usual cleaning processes in the food and beverage industry were simulated. A seven-step process was used to represent a full week of daily cleaning. Detergents and one-time acid were used in each phase of the process. In conventional practice, too, cleaning with acid is carried out once a week. A total of 158 cleaning cycles were carried out at temperatures of up to 55 ° C and a pressure of up to 25 bar. This corresponds to 1,106 tasks per day or 418 test hours.