A specially formulated low foaming liquid cleaner for use on polycarbonate and similar plastic bottles for the bottled water industry. Ronatec B-2003 does not contain phosphates and is extremely free rinsing. Ronatec B-2003 is not caustic and does not attack polycarbonate or PET bottles. Ronatec B-2003 is formulated to reduce the possibility of freezing and solidification in the bottom of the drum during cold shipping and storage.