Secura Automatic Electric Milk Frother and Warmer (500ml) MMF-603 Hot and cold frothed milk for cappuccinos, hot milk for lattes Maximum capacity: 250 ml (for milk froth preparation), 500 ml (for hot milk preparation) Maximum level indicators for milk frother and milk warmer, and minimum milk level indicator Stainless-steel exterior with vacuum insulation; Detachable base. Only for use with North American Electrical Standards, 120V 60Hz AC; 2 year warranty; ETL approved Note: After each use, please remove milk residue around the axle using the soft brush that is included with the product. Milk residue may cause a malfunction if not cleaned properly. Never overfill. There are two Max level marks, the top Max mark is for heating milk and the lower Max mark is for frothing milk. Overflow may occur if filled to the top Max mark and the frothing whisk is being used.