The Hukka Carafina combines beautiful glass with pure, natural, eco-friendly Finnish Carelian Soapstone. It keeps your drinks cool for long periods and chills white, rose, sparkling and even red wine to the perfect temperature and then keeps it at a constant temperature. To use, place and chill the stone base in the freezer for several hours. Once cold, place it on the table and pour room-temperature wine, water or juice (22-24C) into the glass decanter and place on the stone base. Within 15-20 minutes the chosen drink will have chilled to approximately 18C and is ready to serve. After use, the glass decanter should be hand-washed with care and left to drip dry. The stone base can be washed as necessary by hand or in the dishwasher. This product weighs 2.0 kg. Features: Completely natural & sustainable Will last a lifetime and beyond Dispose of in the garden as rocks or stones Hard wearing, durable & sturdy Withstands low or high temperatues Inert, non-toxic & allergy free Stays hot or