Disclosed herein is a composition for cleaning milk products from and sanitising food or beverage preparation devices such a mills frothers of espresso coffee machines. The composition comprises a C1-C6 organic acid and an alkyl polyglucoside. Also disclosed herein is a method for cleaning milk or milk products from food or beverage preparation devices and also sanitising said devices. The method comprises contacting a surface of the device that has been in contact with milk with, the above mentioned composition for a time and at a temperature sufficient to clean and sanitise the surface.
