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PH meter necessity and use
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kal
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Joined: 12 Dec 2010
Posts: 11120
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
PostLink    Posted: Thu Aug 03, 2017 2:24 pm    Post subject: Reply with quote

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Yep - lots of place to check pH (sparge water, mash, pre-boil, post-boil, finished beer, etc). I'd say sparge water and mash pH are the most critical.

For a complete list of where to check and what sort of targets to look for, take a look at my BREW DAY STEP BY STEP article.

Kal
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SD Endorf




Joined: 24 Apr 2015
Posts: 88
PostLink    Posted: Thu Aug 03, 2017 3:14 pm    Post subject: Reply with quote
LarMoeCur wrote:

Do you check your sparge water? Do you acidify the sparge water? I would for sure be checking the pre-boil pH and post boil.

The sparge water is changing your pH and can affect the flavor of the beer. The pH of the sparge runoff should be below pH 6. Higher pH couples with too high sparge water temperatures to extract tannins, silicates, and other undesirable compounds from the grain, which create astringent off- flavors and cloudy, hazy beer. .


I used to, when setting up my system.
To clarify, I use RO water so I do not acidify the sparge.
I would be equally concerned with gravity of final runnings to make sure your mash/sparge volumes are correct.
Particularly with RO, if the mash Ph is correct, the other readings typically will follow.
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jphussey




Joined: 17 Oct 2012
Posts: 171
PostLink    Posted: Sat Oct 21, 2017 3:51 am    Post subject: Reply with quote
Which calibration solution do I need? 4.01? Or both 4.01 and 7?

Is calibration a two-step process or is it for whatever range you're generally in?
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kal
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Joined: 12 Dec 2010
Posts: 11120
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter
PostLink    Posted: Sat Oct 21, 2017 1:37 pm    Post subject: Reply with quote
jphussey wrote:
Which calibration solution do I need? 4.01? Or both 4.01 and 7?
Is calibration a two-step process or is it for whatever range you're generally in?

It's a 2-step process. You need both 4 and 7, and a storage solution, and some other extra bits that can be helpful. See here for complete details: http://www.theelectricbrewery.com/parts-list-using?page=5

Kal
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