I'm trying to take the "next step" into doing both partial and full mashes. I've seen a lot of discussions and instructions for converting a cooler into a mash tun, and I feel pretty confident that I can do it. I know that you pretty much need to have the 10-gallon tun if you're doing all-grain and that a 5 gallon is generally fine for partial mash recipes.
My question is: Is there any reason NOT to build a 10 gallon rather than a 5? Would, for example, having only a few pounds of grain in the 10 gallon be a mistake? Am I right in thinking that a 10 gallon is suitable for both full and partial mash recipes?
Thanks for your help.