It's great that Kai's work on cold water sparge gets a lot of recognition, but you guys have to be careful about linking and repeating stuff like this as gospel. There are some very specific controls that must be recognized. If someone has some empirical experience with a boost in efficiency when mashing out or sparging with really hot water, the logical assumption is that their mash conversion was boosted during that short ramped temp. What Kai's work basically says is given near 100% conversion in the mash, no addition extraction boost can be expected by sparging hot. This however is not the real world where LHBS grinds are questionably coarse.
My same position is applicable to those who batch sparge and have found gains in long runoff periods. A long runoff is an extra long sacc rest.
Finally, while hot water sparging or mashing out is not NECESSARY, it's certainly not wasteful. It just means you're boiling sooner and anything that shortens the already long brew day is for me.
My same position is applicable to those who batch sparge and have found gains in long runoff periods. A long runoff is an extra long sacc rest.
Finally, while hot water sparging or mashing out is not NECESSARY, it's certainly not wasteful. It just means you're boiling sooner and anything that shortens the already long brew day is for me.
