This seems like the kind of question people would ask all the time, but I can't find it anywhere on the forum. Can you use 5 gallon plastic water jugs designed for office water coolers as fermenters? They're the right size, light, clear, and most importantly, they're free. I don't want to spend $100 on glass carboys if I don't need them. Will the plastic give the beer a bad taste? It doesn't with water, but then again, water doesn't have alcohol in it.