[hopfenundmalz]

I know this has been discussed a million times, but is it possible that some analysis sheets are listing pH at mash temp rather then at room temp?

The standard reference is at room temperature. It has been stated that the German Brewing texts are clear about that.

Edit-it would be lower at temperature of the mash by about .3-.35. I measured at room temperature.
http://braukaiser.com/blog/blog/2011/03/02/about-ph-targets-and-temperature/

[denny]

Mashed 0.25 lbs in a half quart of distilled water at 155F in a SS coffee thermos. Calibrated the Milwaukee 101 with fresh 7 and 4 solutions. Then measured the pH after my usual 10 minutes. Result was 5.55 pH.

Thanks for that, Jeff.  I've never checked it.

[Wort-H.O.G.]

Mashed 0.25 lbs in a half quart of distilled water at 155F in a SS coffee thermos. Calibrated the Milwaukee 101 with fresh 7 and 4 solutions. Then measured the pH after my usual 10 minutes. Result was 5.55 pH.

and is 5.8ish Ph what you would have expected?

Yes. The range Best has on their page is 5.8-6.1. So it measured low.

i want to do same thing with avangard pils...having trouble locating any specs on it though.

[hopfenundmalz]

Mashed 0.25 lbs in a half quart of distilled water at 155F in a SS coffee thermos. Calibrated the Milwaukee 101 with fresh 7 and 4 solutions. Then measured the pH after my usual 10 minutes. Result was 5.55 pH.

Thanks for that, Jeff.  I've never checked it.

That might just be for this lot of pils malt.

[klickitat jim]

FWIW best is my house pils and using Brewers Friend I've been getting accurate predictions

[mabrungard]

When you get right down to it, the base malt is what dominates the resulting wort pH for most brews. The distilled water pH of typical pale and pils malts should fall in the 5.7 to 5.8 range. If the distilled water pH in a test came up much different than that, some adjustments to your calculations should be made. 

[Wort-H.O.G.]

When you get right down to it, the base malt is what dominates the resulting wort pH for most brews. The distilled water pH of typical pale and pils malts should fall in the 5.7 to 5.8 range. If the distilled water pH in a test came up much different than that, some adjustments to your calculations should be made.

and for that presume that's what you have loaded into your software. I want to test my house base malts from Avangard and see what it comes out as.


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[hopfenundmalz]

FWIW best is my house pils and using Brewers Friend I've been getting accurate predictions

Jim, I have shared data from Best Pils Lot number 12665. Malt has variance as an agricultural product. This one seems a little acidic for whatever reason.

What lot numbers have you had better luck with? As a Chief Engineer used to say, can you show us your data?

[Stevie]

Can't we just throw some 5.2 stabilizer in there?

[HoosierBrew]

Can't we just throw some 5.2 stabilizer in there?

Absolutely. 

[klickitat jim]

FWIW best is my house pils and using Brewers Friend I've been getting accurate predictions

Jim, I have shared data from Best Pils Lot number 12665. Malt has variance as an agricultural product. This one seems a little acidic for whatever reason.

What lot numbers have you had better luck with? As a Chief Engineer used to say, can you show us your data?

No idea. I dump sack into storage bin, sack gets tossed. Sorry

[beersk]

Can't we just throw some 5.2 stabilizer in there?

Hahaha! I love it...

[brewinhard]

By the way, I've found that Simpsons Golden Promise tends to be more acidic than indicated by color rating.

Keep posting this sort of information since it will help refine the malt acidity parameters.

Any idea on the variance for Simpsons Golden Promise? Was planning a brew with it soon.

[Wort-H.O.G.]

Mimicked Jeff's mini mash test on my avangard pils. two PH meters used both calibrated with fresh 4.0 and 7.0 solution (one meter brand new arrived yesterday milwaukee Ph56 pen). after 10 minutes at 152F mash, PH readings were 5.4 and 5.41 in 65F cooled filtered wort.

I'm so glad you started this thread Jeff- I now understand whats been going on with my .2-.3 lower than expected PH.

[hopfenundmalz]

I need to test some other base malts now.

The guy at the local brewery was surprised when his pH was low. He based used a lot of Best Pils and hits his target pH, so something is going on.

Edit - I haven't bought Avangard in a while, don't remember any low pHs with that before.