Overflow (drain) cups are a device of round or oval cross-section and are installed on the column plates of the fermentation plants. The overflow (drain) cup of the distillation column is designed to maintain a stable level on the column plates and to ensure the complete removal of ethanol and its impurities from the mash, as well as to ensure the movement of the mash along the entire height of the column. Material of manufacture - stainless steel or copper.