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Messages - brewnz

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Equipment and Software / Re: pH monitor
« on: November 10, 2016, 07:32:33 PM »
I was gifted the Milwaukee MW 102 pH/Temp Meter. It is a quality piece of equipment and I noticed that pFriem Brewing Co. in Hood River was using the same or a very similar model. Since I only use it about once / month I calibrate before each use.

I would suggest paying a little extra money to buy a decent meter that will allow you to replace the pH probe.

Just replaced mine after two years and 10 months (61 batches) typically used once or twice per batch.  Cost about $35 for a new pH probe. Resolution 0.01 pH, accuracy (@25C) +/- 0.02 pH

If you are going to bother measuring pH, you might as well spend the money on a decent meter.

-Brewn'Z

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Equipment and Software / Re: MW102 pH meter issue
« on: October 25, 2016, 01:58:23 PM »
One potential cause for the changing pH over time is that proper use of a pH meter requires a gentle stirring motion.  This is because the gel inside the pH meter is gradually seeping through the porous glass bulb at the end of the electrode. Without stirring it will cause a localized imbalance and you'll get a false reading.

So, for example, if I take a wort reading while I am gently stirring the electrode in cooled wort, pH meter stabilizes and I write down that value. Then if I was to simply leave the electrode sitting in that same wort - the value will drift over time. By stirring again, it should come back to the initial reading (repeatable measure). If it does not, then there is more going on. As I read the initial post, just sounds like incorrect method.

This thread has been a good read for me, thanks!

BrewnZ

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WA / Come brew in the Columbia Gorge - White Salmon
« on: November 04, 2010, 06:46:03 AM »
Hey Folks,

The B.O.G. or Brewers of the Gorge will be stirring up an all-grain batch in White Salmon. Stop by our member's house to see his setup and meet fellow homebrewers of the Columbia Gorge (WA / OR border). We are a relaxed club and have members from Stevenson to The Dalles with a satellite branch in Portland as well. Meetings are held monthly at a members home or at a local brewery to share homebrew, tips, and gadgets. Each year we host a Wild & Sour Beer Fest, B.O.G. Fest Camp out, and compete head to head for a custom chalice in the annual PIMP Cup.

The B.O.G. is all about better beer! Bring a carboy down and see.

For more info contact:
bog.motivator@gmail.com

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