Chillin' Brew offers the beer drinker, the absolutely best opportunity for the coldest beer possible! Arctic Ice Chillin' Brew Panel in collegiate color maroon, in a cooler can keep beer at the perfect drinking temperature longer than ice without the mess or waste. Inside Chillin' Brew panel, the active ingredient changes phases, or freezes at a temperature just above the temperature beer would freeze. This material manipulates the temperature of beer to constantly remain even colder than ice. In fact, Chillin' Brew panel could possibly produce the coldest beer in the entire world! As an added bonus - Chillin' Brew is reusable for a lifetime! To recharge the panels, just pop them in the freezer for 6-10 hours and Chillin' Brew's ready to party! Chillin' Brews active ingredient has been tested for up to 100,000 freeze/thaw cycles without any change in its effectiveness. In addition to being the best way to keep beer at a "beer cave" temperature, Chillin' Brew is environmentally friendly. The unique phase change material used in Chillin' Brew is made from animal food stocks and is completely biodegradable and harmless should it ever leak.