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Old 04-20-2007, 08:14 PM   #1
JonnyO
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Apr 2007
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I know when taking hydrometer readings it's common practice to dip out a sample into a test cylinder. I've tried the plastic one that my hydrometer came in, as well as a pyrex graduated cylinder. The problem is that the hydrometer wants to stick to the sides and I have trouble getting an accurate reading. I know it's frowned upon to take a reading directing from the fermenter, but what's the difference between putting a sanitized hydrometer in the beer and dipping beer out with a sanitized cup? Just wondering.

 
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Old 04-20-2007, 08:21 PM   #2
ill.literate
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Nov 2006
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you don't get to taste the sample if you don't take any out of the carboy.

one trick I learned, when you put the hydrometer into the cylinder, is to give it a gentle spin. It'll help settle the bubbles, and should keep it off the sides.

and wait... just let it sit for a bit. There's usually no rush to take the reading immediately
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Old 04-20-2007, 08:25 PM   #3
BierMuncher
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Quote:
Originally Posted by ill.literate
you don't get to taste the sample if you don't take any out of the carboy.

one trick I learned, when you put the hydrometer into the cylinder, is to give it a gentle spin. It'll help settle the bubbles, and should keep it off the sides.

and wait... just let it sit for a bit. There's usually no rush to take the reading immediately
Right.

Use a stainless steel cup or something to dip out your sample and then seal up your fermenter right away.

Now you can take your time. Go over to a sink or something, place you hydrometer into your tube dry and then fill it to overflowing. Set it down and let the bubbles settle out. Give the hydrometer a slight tap downward to knock off the bubbles (they'll cause a false reading if they "float" the hydrometer).

Once things have settled, hold the hydrometer up and position it so that the needle floats in the middle, away from the walls.

Then, drink your sample.

 
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Old 04-20-2007, 08:30 PM   #4
ill.literate
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Nov 2006
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Quote:
Originally Posted by BierMuncher

Now you can take your time. Go over to a sink or something, place you hydrometer into your tube dry and then fill it to overflowing. Set it down and let the bubbles settle out. Give the hydrometer a slight tap downward to knock off the bubbles (they'll cause a false reading if they "float" the hydrometer).
Why do you fill it to overflowing? I've never done that
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Old 04-20-2007, 08:53 PM   #5
CBBaron
 
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Quote:
Originally Posted by BierMuncher
Now you can take your time. Go over to a sink or something, place you hydrometer into your tube dry and then fill it to overflowing. Set it down and let the bubbles settle out. Give the hydrometer a slight tap downward to knock off the bubbles (they'll cause a false reading if they "float" the hydrometer).
Excellent idea on filling up the tube to overflowing. Now the bubbles flow off the top of the beer, and you can more easily read the hydrometer instead of trying to look through the tube. Plus my sample tube is almost too short for the hydrometer, this way I can even read those dry FG without a problem.
Thanks
Craig

 
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