This jacket is designed to insulate your FermZilla during the colder months to keep your fermentation at the optimun temperature. It can also be used with a heating belt/wrap to warm up the wort if the heat from the fermentation isn’t enough.
Also completely blocks any light/UV to prevent light stuck beer.
The FermZilla Conical Jacket still alows use and view of the Top Lid/ airlock whilst insulating the conical during fermentation. Its fitted with a single sided zipper and draw string bottom to give the best insluation possible. To cool the fermentation whilst the insulation jacket is covering the conical simply put Ice Packs inside the jacket to effectively cool the fermenter.