icy mug,icy cup,drinking mug Freezing beer ,ice tea,soda,lemonade or other favorite, the frosty mug is ... refrige ,freeze the water inside ,them pour the beer ,the ice can make beer cold ,you can have cold beer in ... cold without dilution them.where ever your beverage is beer ,ice tea,soda,lemonade or other favorite,the frosty mug is ...