Originally Posted by FSR402
So if you were to do a batch sparge and at the end of the 60 minutes do you put in X amount of water at near boil temps to bring the mash/water up to 168 then after 15 minutes drain and put in the 170* water to sparge?
Exactly. Depending on your batch size, temps and cooler size, sometimes it's hard to add enough water for the mashout without either overflowing your cooler or messing up your batch volumes...I'll sometimes pull an all-liquid decoction to make sure the temp hit 168 or so.
Also, I generally go a little high on the second batch sparge water temp (maybe 175) since the grain bed will cool below 170 as you drain the first batch.