If I was to double a recipe would my mash water need to be higher? They call for 3.98 gallons of water at 159f this is for a 5 gallon brew NLRB 10 gallons. So would the temp be the same for 10 gallons? Also would almost 8 gallons of water and 30lbs and 20oz of grain fit into an 10 gallon mash tun with the 8 gallons of water?