So I am about to brew an extract with a partial mash. I have a stainless steel bucket with a spigot that I have affixed insulation to the outside to make a makeshift mash tun. I do not have a manifold for it and I live kinda off the beaten path so going to the store to rig something up is not an option. My question is can I place the grains in a muslin bag (which I have) to mash?