Water Profile for a APA?

[J-Rock44]

Hey just out of curosity, where do you obtain the figures for your water? Send it off to a Lab? Or maybe you have an in house kit?

 

[BrewerNH]

Hey just out of curosity, where do you obtain the figures for your water? Send it off to a Lab? Or maybe you have an in house kit?

My results came from Ward Laboratories. It's a painless process with options for submitting samples and report types.

John

 

[ajdelange]

Yes, the free-version of the sheet doesn't include the proper accounting of the added acid anion. It is an otherwise innocuous error that doesn't affect the results.

Capisco but it sort of says 'This spreadsheet has an error. What else is wrong?' I'd rather put blank fields than something that is obviously wrong. Perhaps put a solid field (no number) of a particular color with an annotation, and/or general comment in the instructions, that says when you wave your credit card you get to see what's behind the green doors.

 

[HomeDrewBrew]

How do you obtain the different water profiles like the Apa?.

 

[Brewdogs]

I use Randy Mosher's profile for Pale Ales for APAs and IPAs.
Ca: 110
Mg: 18
Na: 17
Cl: 50
SO4:350
CaCO3: 57

Are those figures in grams for a 5 gallon batch or are they in ppm?

Also, if it's in PPM, that is equal to mg/ litre. So I should just multiply by the number of litres of the total water used (mash+sparge) to arrive at amounts of salt needed ,right?

Sorry, I'm a noob. I have to know this before my first batch.. and I'm using RO..

Thanks in advance.

 

[VikeMan]

Are those figures in grams for a 5 gallon batch or are they in ppm?

Those numbers @studmonk3y quoted are in ppm.

Also, if it's in PPM, that is equal to mg/ litre. So I should just multiply by the number of litres of the total water used (mash+sparge) to arrive at amounts of salt needed ,right?

Sort of. You can't add any of these cations or anions without also adding an associated anion/cation. Examples: to add calcium, you have to add it as calcium chloride, or calcium sulfate, or even calcium hydroxide.

So to do the math, you have to know what percentage of the weight of the salt is made up of the ion you are targeting. And when building a whole profile, the math is cumbersome. That's why there are several software options, some free, that make it easier.

 

[Brewdogs]

Those numbers @studmonk3y quoted are in ppm.



Sort of. You can't add any of these cations or anions without also adding an associated anion/cation. Examples: to add calcium, you have to add it as calcium chloride, or calcium sulfate, or even calcium hydroxide.

So to do the math, you have to know what percentage of the weight of the salt is made up of the ion you are targeting. And when building a whole profile, the math is cumbersome. That's why there are several software options, some free, that make it easier.

Thank you so much for the reply. I'll read more about this and also use calculators that are available online.
Cheers!