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Old 12-26-2012, 06:10 PM   #1
Dec 2012
Posts: 85
Liked 10 Times on 8 Posts

When I did my first brew last Saturday I had trouble getting an accurate SG reading before I pitched the yeast. The surface of the wort in the fermenter was covered in bubbles... I tried to clear away the bubbles each time I dropped the hydrometer in, but each time the bubbles sort of swarmed around my hydrometer. I could tell that my reading was 1.05x but couldn't get a really clear view of the reading.

How do you guys take your SG reading?


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Old 12-26-2012, 06:13 PM   #2
Jun 2012
Calgary, Alberta
Posts: 29
Liked 4 Times on 4 Posts

I often have the same problem with a swarm of bubbles. Inside my measurement cylinder I drop in the hydrometer then use a straw to suck away the bubbles.

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Old 12-26-2012, 06:19 PM   #3
Jul 2012
Grand Rapids, Michigan
Posts: 888
Liked 84 Times on 77 Posts

It sounds like you're using your hydrometer directly in your kettle or fermenter. I would suggest (if I'm correct) that you take a sample with your auto-siphon or wine thief and put it into a graduated cylinder. Then when you drop your hydrometer in, use paper towel to wipe away the bubbles. Also, make sure you are letting the wort get to 60F or so, otherwise your SG reading will be way off.

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Old 12-26-2012, 06:31 PM   #4
GASoline71's Avatar
Dec 2011
Oak Harbor (Whidbey Island), WA
Posts: 609
Liked 70 Times on 59 Posts

I take hydro readings right in my bucket with a crapload of bubbles/foam just like you described. So what I do is spray star-san all over my hand (from just above the wrist) and scoop all the bubbles/foam off the top of the brew. Then I can drop my star-san'd hydro right in the bucket.

Been doing it that way for a year and a half. No probs...


"Brewed Fresh from the North End of Puget Sound"

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