Ice Beer Mug II

The ice beer mug II is a special beer mug with double walls filled with a special liquid that turns into ice when frozen. Before use, place the mug upside down in the freezer for 2 to 4 hours (so that the liquid is distributed throughout the entire mug), where the liquid freezes into one large block of ice. This keeps the mug cold for a long time and also keeps your favourite beer chilled. During the summer, you can cool not only beer but also any other drink without having to dilute it with ice.