Brew'n water what went wrong?

[WallyBrew]

The mash dilution was = 4.8ltrs de-ionised water, added to 7.2ltrs of my tap water, totalling 12ltrs which the CRS was then added too @ 4.8ml, gypsum was added to the grist @4.2gms.

Lee.

If I've read that correctly it's 16 calcium carbonate in the final water which equates to 26.6 in the mains water.

On that basis the amount of CRS calculates as 4.77mL. Think that agrees fairly well

[sllimeel]

so does that mean the crs that was reported to add was not correct?

[WallyBrew]

Only if you think a difference of 0.03mL is significant.

[sllimeel]

Only if you think a difference of 0.03mL is significant.

So this should have given me the stated 5.33 PH for the mash then?

[WallyBrew]

So this should have given me the stated 5.33 PH for the mash then?

No Idea as Bru'n Water has nothing to do with me so I take no responsibility for anything contained within Bru'n Water, any of its claims and especially any of its results.

However, given the grist, the gypsum additions and the low alkalinity of the mash water, the pH of your mash should have been less than 5.8 possibly as low as 5.5

The contents of the mash tun are not the most friendly environment for a pH electrode and I know that my work one (cost many hundreds as do the electrodes) goes out of calibration if used in these conditions.

[sllimeel]

So this should have given me the stated 5.33 PH for the mash then?

The contents of the mash tun are not the most friendly environment for a pH electrode and I know that my work one (cost many hundreds as do the electrodes) goes out of calibration if used in these conditions.

The Ph was tested from a drawn sample taken from the mash tun, then cooled to 20c!

Hopefully as the other ph readings were ok and as you state the crs additions for the mash should have given me a lower ph, fingers crossed for a good beer

[mabrungard]

Martin, with reasonable confidence I assume alkalinity is reduced at a rate of 184mg CaCO3/ml CRS. What figure have you assumed?

Neil, yes! As I've admitted before, I'm getting old. Thanks again for putting things straight.

Eric.

Thanks, Eric.

Yes, adding CRS at a rate of 1ml/Liter in Bru'n Water will neutralize 221.5 mg/L bicarbonate which equates to 183 mg/L as CaCO3. So it looks like that is reasonably accurate.

[orlando]

Thanks, Eric.

Yes, adding CRS at a rate of 1ml/Liter in Bru'n Water will neutralize 221.5 mg/L bicarbonate which equates to 183 mg/L as CaCO3. So it looks like that is reasonably accurate.

But it still begs the question what happened? Any ideas on that?

[sllimeel]

Thanks, Eric.

Yes, adding CRS at a rate of 1ml/Liter in Bru'n Water will neutralize 221.5 mg/L bicarbonate which equates to 183 mg/L as CaCO3. So it looks like that is reasonably accurate.

But it still begs the question what happened? Any ideas on that?

Orlando...indeed it does, because at the moment when i get the information from the spreadsheet using CRS can i now trust it, maybe Martin can shed some light?

Maybe time to ditch the CRS and go with another acid.

[orlando]

Maybe time to ditch the CRS and go with another acid.

I did and have had none of the issues you describe.

[sllimeel]

Maybe time to ditch the CRS and go with another acid.

I did and have had none of the issues you describe.

Was only trying to use the CRS up before moving on...maybe that time has come