Author Topic: Help with Water Profile and pH  (Read 126 times)

Offline Old-P

  • BeerSmith Apprentice Brewer
  • **
  • Posts: 5
  • Brewing for the fun of it
Help with Water Profile and pH
« on: May 20, 2020, 05:11:21 AM »
Hi,
I have managed to get the profile for our local drinking water:

Ca+2 = 110.0
Mg+2 = 26.9
Na+ = 4.0
CI- = 9.4
SO4-2 = 22.4

Ca+CO3 = 17.9ppm

21.6dH

Unfortunately it doesn?t show the amount of bicarbonate, so should I leave that blank or add a nominal amount in the water profile tool?

Also, can I workout the pH value from the above breakdown?

Any help with the above would be very much appreciated.

Many greetings from a not so sunny Bavaria

Offline Oginme

  • BeerSmith Grandmaster Brewer
  • *****
  • Posts: 2786
  • Goats, guitars, and a home brew; Life is good!
    • Longvu LaManchas
Re: Help with Water Profile and pH
« Reply #1 on: May 20, 2020, 06:23:44 AM »
Just working the ionic balance of your water, the Bicarbonate level would need to be at 436 ppm in order to maintain the correct cation/anion balance.  I would enter in this value as a starting place and then adjust as you find more information regarding your actual mash pH versus the estimate from BeerSmith.

The water pH is pretty much a useless field so you can set it at 7 and let it be.  It really dictates the form the Carbonate ions take in solution.  The actual buffering capability is described more by the residual alkalinity than by the actual water pH.  What really matters is the mash pH which is controlled by the residual alkalinity and your grist composition.



Recycle your grains, feed them to a goat!

Offline Kevin58

  • BeerSmith Grandmaster Brewer
  • *****
  • Posts: 410
  • I make beer. Not a style.
Re: Help with Water Profile and pH
« Reply #2 on: May 20, 2020, 07:01:19 AM »
That's one of the problems with municipal drinking water reports, they don't give homebrewers what we want to know or use. Get a test from Ward Labs: https://www.wardlab.com/services/water-analysis/ Scroll down that page and look for the BREWERS TEST. They will return to you everything you need to build your base water profile.
If you?re stressing over homebrewing, you?re doing something wrong.
- Denny Conn

Offline Old-P

  • BeerSmith Apprentice Brewer
  • **
  • Posts: 5
  • Brewing for the fun of it
Re: Help with Water Profile and pH
« Reply #3 on: May 20, 2020, 08:02:55 AM »
Just working the ionic balance of your water, the Bicarbonate level would need to be at 436 ppm in order to maintain the correct cation/anion balance.  I would enter in this value as a starting place and then adjust as you find more information regarding your actual mash pH versus the estimate from BeerSmith.

The water pH is pretty much a useless field so you can set it at 7 and let it be.  It really dictates the form the Carbonate ions take in solution.  The actual buffering capability is described more by the residual alkalinity than by the actual water pH.  What really matters is the mash pH which is controlled by the residual alkalinity and your grist composition.
Thank you very much, this is super helpful.
 

 

modification