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Questions tagged [specific-gravity]

Specific gravity in brewing is the ratio of the density of the wort to that of water.

129 questions
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Water PH level and the effect on original gravity

What effect, if any, does the pH level of my water have on OG?
Lynn Neeley
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Can I measure specific gravity a day after sampling?

Often when I pour a sample to be measured, there is a good 1cm of head obscuring the SG value. It can stay around for quite some time. Can I leave it overnight in order to take the reading the next morning without some mysterious (ie unknown to…
DefenestrationDay
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How long can I let an IPA fermented while dry hopping?

The hydrometer reading is 1.014 from 1.058. I just dry hopped. How long should I let it ferment? Can I let alone for one more week without messing it up?
Sharon
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Does any "probe" exist which can detect the gravity of wort?

I use a Raspberry Pi in combination with a temperature probe to measure the temperature of my wort. It would be nice if I had another probe that could measure the current gravity of my beer, so that my RPi could instruct my fermwraps to heat up once…
Matthew Moisen
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Gravity goes down during cooling

Brewing with Grainfather system. Gravity measured post boil at 1.068. Gravity measured post cooling and transfer to fermenter @ 1.058. How/What could cause this?
John
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Refractometer or options?

I have advanced to a very prolific brewer and have mastered many aspects of home brewing. For some reason I seem to be unable to master the issue of Specific Gravity. Try as I may, I just do not grasp it and as a result always keep my beer in…
Rory
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Does it matter whether SG sample is from top or bottom of vessel?

I have a wine that appears to have reached 0.992 SG (so in theory should be ready to bottle), but am concerned that my SG reading could be an underestimate because I took the sample from near the top of the carboy. When moving the vessel to prepare…
CaptainProg
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Typical first-day change in specific gravity

I recently started my first BIAB all-grain brew, but unfortunately my hydrometer broke before I could get an OG reading. I was targeting around a 1.065. Just around 24 hours later I took a reading and got a 1.030. I also accidentally overpitched the…
Tjaden Hess
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Specific Gravity Reading

So with your help I've made into secondary fermentation of my first hard cider batch. I just have a question about specific gravity. I started with a reading of 1.060.I measured it again from a sample left over and got a reading of 1.010. I read…
CiderMonkey
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Muntons pilsner specific gravity not coming down

I'm relatively new to homebrewing and I tried a Muntons Extract Pilsner kit. I followed the instructions on the kit to a T and after 3 weeks (and having read other questions and comments on this site), my SG is still above 1.020. Can I salvage…
Drew White
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