The ARCTIC ICE Chillin' Brew series was specifically designed with the beer drinker in mind, but is excellent for cooling anything kept in a cooler. ARCTIC ICE Chillin' Brew has a phase change (melting point) of 28°F, making it uniquely suited for keeping beer or any other beverage at its coldest point possible. With the addition of ARCTIC ICE Chillin' Brew to a cooler, the contents don't have to be just cold, they can be colder than ice! ARCTIC ICE Chillin' Brew is reusable for a lifetime, making it a very economical choice for years of "colder than ice" coolers. ARCTIC ICE Chillin' Brew can also be used with ice to keep ice frozen up to 50% longer than an equal weight of ice would last alone. For your convenience, ARCTIC ICE Chillin' Brew should be stored in a freezer for ease of access and will re-freeze in about 6-8 hours. ARCTIC ICE Chillin' Brew panels are also top-rack dishwasher safe! ARCTIC ICE uses non-toxic, high performance “phase change materials,” or PCM’s, to keep cooler temperatures anywhere from ice cold to frozen. Each panel is ruggedly designed with expanded surface area to provide exceptional cooling capacity and efficiency. Spin welded seals keep our panels leak free for a lifetime of use. ARCTIC ICE products are proudly made in the USA and are warrantied against defects from workmanship for life.