BrewStew said:
Dunfie said:
I'm in the same boat as yourself BS. Its an area that I would like to learn some more about too.
The water up here is very soft which is great for darker beers but not optimum for pale ales and certain bitters. Up till now I have simply added some calcium to the odd brew as someone told me to but to be honest I didn't really look into why
is it not supposed to be the other way around? i thought hard water like mine is better for darker beers? and pales better for softer water :wha: i'm sure dublins got hard water which is why they came up with guinness, the london water is very hard too and they brewed it there.
i'm confused now. hehehe i was under the assumption that roasted/black malt etc counteracted water hardness
Stop being confused BS, Dunfie has got it the wrong way round . . . . Although be careful using the terms Hard And Soft and relating them to brewing. London has Hard Water and makes great Dark Beers . . . . Burton has Hard Water and makes cracking pale beers and so so darker ones . . . Hard water is water that has a high level of
calcium and magnesium in it, soft water has a low level of calcium and magnesium. Ok so what is important . . . Alkalinity . . . London (And Dublin and Munich) have waters that have a high alkalinity (caused by water drawn off chalk deposits dissolving the carbonate, and having a high level of the bicarbonate (or hydrogen carbonate) HCO3- ion), Burton on the other hand, has a high level of sulphate great for hoppy beers.
The acidity from the roast malts neutralises the bicarbonate and the mash pH falls to the ideal value
BrewStew said:
Aleman, is there a way to pre-test with doses of CRS etc? i found i had to wing it the first time i used CRS... adding it, then testing, then adding some more... is there a surefire (and not complicated) way of working this out?
Well you could make a very small scale lab mash, and repeat it using liquor with subsequently more CRS added to it, until the pH was in the right range . . . but you would go through a lot of pH papers :) If you have an accurate pH meter you can use that to directly determine the amount of CRS to add to each litre of liquor. The JBK test kit is a reagent based version of that and is probably the simplest method of determining the alkalinity and how much CRS to add.
Using Palintest Total Alkalinity Kit and a 1:20 CRS solution you can determine how much CRS to add, . . . but again the test kit and reagent is fairly expensive (~30 quid IIRC - for 100 tests)
BrewStew said:
that liquor calculator that was on another forum scared the **** outta me! :shock: :lol:
That is probably one of the better Water Treatment calculators available . . . Promash's one is not accurate as Jeff Donovan forgot to include water of Hydration in his calculations . . . GW's is fairly simple, once you know what values to plug in where . . . the difficult bit is determining where you plug in your Alkalinity figure, after that it is fairly simple