Slip one of these ice wraps between your homebrew keg and a neoprene sleeve to keep your keg cold for hours! Two wraps will completely cover a 5-gallon corny keg. The cooling gel sheets are made up of individual cells, so you can cut the wraps into custom shapes and sizes if desired.
For fermentation temperature control, these ice wraps work great as a cooling source. If you're using a cooler bag for fermentation, simply put one or two of these in with your carboy to keep temperatures in check. Or pair with a FermWrap and temperature controller, and you've got a heated and cooled temperature control system that will keep fermentation within 1°F of your set point!