Grains and ph?

[sause]

Is there a chart that states how much a certain grain will lower the ph of a certain amount of water? I was wondering how much I have to lower the ph of my water so it will not go too low with the grains that I use.

 

[Kaiser]

The PH that the grains give you in destilled water, is usually one of the parameters that are determined in a lab analysis of the particular lot of malt.

If you are worried about the PH, measure it when you mash in. When it is to high, add some acid malt to lower it. Or some straight acid if you want to.

Kai

 

[david_42]

As Kaiser said, pH adjustments are best done during the mash, until you have worked with a specific malt for a while. The alternative is to use a buffered product like pH 5.2. Personally, I can't read the strips and don't want to buy and maintain a meter, so I buffer.