I have never done a mash-out before (I've gone gone right to fly sparging) and was going to try it tomorrow just for fun. I have BeerSmith telling me how much water to add and for how long but are you supposed to stir after you mash-out? Seems like that would be the best way to raise the temp of all the grain bed. I suppose I should also ask if there is a time or situation when it's best to not mash-out.