How much 88% lactic acid is needed to lower mash ph by 0.1

[YOpassDAmike]

How much 88% lactic acid is needed to lower mash ph by 0.1. Is there a calculator to know how much lactic acid to adjust mash ph on the fly? I know grain weight and volume of water is needed to determine how much lactic acid to add but is there a general rule or equation to determine how much acid is needed?

 

[laredo7mm]

I think it would depend on your water chemistry. There are more than a few water calculators out there. You can use one of those and see how much acid is needed.

 

[Gnomebrewer]

Ask in the Brew Science forum. AJ Delange will have an answer for you.

 

[Yooper]

I have a chart in my brew room that I found on Braukaiser.com:

http://braukaiser.com/wiki/index.php?title=Mash_pH_control (Scroll ALL the way to the bottom). It's pretty reliable.

 

[Happywanderer]

Download and use Bru'n Water or a similar tool. Water PH will depend on your grain bill. So - without knowing:
1) Initial water chemistry
2) Mash volume
3) Grain bill

We cannot even begin to guess the answer.

 

[mabrungard]

Once the mash pH is in the ballpark, the acid or base additions are fairly linear for minor pH adjustment. The chart that Lorena mentions is a good approximation. Of course Bru'n Water can assist you with that question too.