It definitely does.
The Goal is to have your grain at about 169-170˚. Anything over that and you will halt enzymatic conversion of starches to fermentable sugars. Sparging too hot can also can also add an excess of tannins which make your beer have have astringent mouthfeel.
Anonymous
Does the temperature of the sparge water really make a difference?
Seth
It definitely does.
The Goal is to have your grain at about 169-170˚. Anything over that and you will halt enzymatic conversion of starches to fermentable sugars. Sparging too hot can also can also add an excess of tannins which make your beer have have astringent mouthfeel.
Anonymous
Does the temperature of the sparge water really make a difference?