[brewinhard]

Took a mash pH reading after 15 minutes into the mash today and left the sample out for the remainder of the 60 minute mash just to see what the final reading would be.

Does anyone know if the sample reading pH correlates closely with the actual mash pH going on inside the mash tun as the mash continues to completion?  For example, if my sample reading increases from 5.25 to 5.3 at the end of the mash, can I assume the same (or closely the same) is going on inside of the actual mash or is it a different beast all together because of the grains?

[brewinhard]

bump.....no thoughts anyone?

[Mike-Ale]

I have wondered the same. Does removing your sample from the rest of the grains change what is happening?  I am interested as well...

[pkrone]

I'm not sure it would be the same as the sample you pulled at the start isn't an exact replica of what's in your tun during the entire mash.     I'd say next time you brew, pull a sample at the start, test it, and keep it.   Pull additional samples during the mash and compare the 2 samples and you'll have you're answer.   Heck,  maybe I'll do this myself the next time I brew...

[EnkAMania]

If I remember, I'll do this Saturday.  I take a ph reading at 15 minutes and at the end of the mash.  I'll keep the 15 minute sample instead of throwing away

[brewinhard]

If I remember, I'll do this Saturday.  I take a ph reading at 15 minutes and at the end of the mash.  I'll keep the 15 minute sample instead of throwing away

Curious if you have any data on this for me?  If not, I will perform this task next time I brew coming up soon. Wee Heavy on Halloween.

[EnkAMania]

If I remember, I'll do this Saturday.  I take a ph reading at 15 minutes and at the end of the mash.  I'll keep the 15 minute sample instead of throwing away

Curious if you have any data on this for me?  If not, I will perform this task next time I brew coming up soon. Wee Heavy on Halloween.

I checked my 15 minute mash again after the mash was complete and the reading was the same.