Arctic Ice Chillin' Brew Series, Long Lasting Reusable Ice Pack, Large, 2.5 LB, Blue.

The Arctic Ice Chillin Brew Series Freezer Packs 2.5 lbs. have a freezing point of 28deg F, which makes them uniquely suited for keeping beer or any other beverage at its coldest point possible. Under the right conditions, Chillin Brew packs can even keep coolers under 32deg F for days. They are also reusable for a lifetime, making them a very economical choice. 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.