Darwin18
Well-Known Member
Is it really necessary/important to know the temperature of the brew in the primary?
Yes. It is actually the most important factor in making the consistently best beer possible. All a conical is a fancy fermenter. It isn't going to make their beer any better, although it does look very cool. Save yourself some money and buy them something like this:
http://morebeer.com/products/cool-brewing-insulated-fermentation-bag.html
It will make a huge difference in the quality of their beer and you'll be a hero in their eyes.