T.D.
Hop Whore
- Joined
- 28/4/05
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Yeah, there is a specific amount of sparge water you need. There are rough calculations you can use to make sure you end up with the right final batch volume.
I am lazy and let Beersmith do all the calculations for me, but I think its something like this:
5kg of grain
3:1 mash water to grain ratio (so 15L of mash water)
Grain absorbs roughly 1L per kilo of grain (so that reduces your extract by 5L)
Sparge with the amount of water required to make up boil volume (so that's say 30L boil volume minus 10L of extract from the grain = 20L of sparge water). That's not taking into account other losses like dead space in your mash tun etc.
Can somebody clarify/correct my specific details here - as I said I am not entirely sure if my calculations are correct and I would hate to give a new brewer dodgy info!!
I am lazy and let Beersmith do all the calculations for me, but I think its something like this:
5kg of grain
3:1 mash water to grain ratio (so 15L of mash water)
Grain absorbs roughly 1L per kilo of grain (so that reduces your extract by 5L)
Sparge with the amount of water required to make up boil volume (so that's say 30L boil volume minus 10L of extract from the grain = 20L of sparge water). That's not taking into account other losses like dead space in your mash tun etc.
Can somebody clarify/correct my specific details here - as I said I am not entirely sure if my calculations are correct and I would hate to give a new brewer dodgy info!!