I just bought a chest freezer for fermentation and was wondering if it makes a difference whether I use as my heating source a fermenter wrap (I have a Fermwrap) or a heating pad, which seems to be another popular option from what I can tell. In other words, is it better to warm the beer directly or the freezer so as to reach the proper temperature?
My sense is that both are fine--and if so, then I'll just use the wrap. But I'd rather hear from people with experience before I take the next step. Thanks.