monkeyman1000
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- Nov 10, 2013
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I brewed a Scottish Ale today. I'm using RO water and Bru'n water. This is my second brew using the above and my pH meter. I was trying to hit about 5.5 each time but come up with 5.3. I measured at 20' and got 5.31 at 70.3 degrees. Again at 30' with pH 5.33 at 73 degrees and again at 40' with pH 5.29 at 73 degrees. This was about the same results with my amber ale. I guess I just shoot for a pH of 5.7 on Bru'n water next time to hit 5.5.
Also, I noticed a 4 degree difference in temp from my pH meter and my Thermapen. I calibrated my Thermapen about 3 months ago and it was spot on. I will redo it tomorrow. Is this a big deal if the pH meter is off on temp? Thanks for the help.
Oh, one more question. I calibrated my pH meter about 30 minutes before my first reading. It stabilized at 7.01 in buffer 7.0 at 69 degrees and in the 4.01 buffer it stabilized at 4.06 at 71 degrees. I waited about 7 minutes for each buffer. Do I need to add/subtract anything from the mash pH numbers I got above? Thanks again.
Also, I noticed a 4 degree difference in temp from my pH meter and my Thermapen. I calibrated my Thermapen about 3 months ago and it was spot on. I will redo it tomorrow. Is this a big deal if the pH meter is off on temp? Thanks for the help.
Oh, one more question. I calibrated my pH meter about 30 minutes before my first reading. It stabilized at 7.01 in buffer 7.0 at 69 degrees and in the 4.01 buffer it stabilized at 4.06 at 71 degrees. I waited about 7 minutes for each buffer. Do I need to add/subtract anything from the mash pH numbers I got above? Thanks again.