The device is designed to separate petioles, stalks and leaves from berries. In other words, the machine is dedicated to separate the stalk from the product. By using the screw ribbon rotating opposite to the drum, friction is created, which allows the stalk to be separated from the product without destroying it. The waste is sifted through a special sieve with appropriate perforation and falls into the tank placed alongside the machine. Depending on the client’s preferences, it is possible to equip the machine with conveyors collecting impurities.