Keep the wine cooler in the freezer for 2 hours before using it. Place your chilled wine into the stone, and it will keep it cool for longer than it takes to drink it! Holds a 750ml bottle of wine. Dishwasher SafeHukka soapstone was created over 2 billion years ago under the immense pressure of the Karelian mountain range. Skilled craftsman make each soapstone piece.Made in Finland.