taking hydrometer readings

[MrWoolf]

Hi all,

do you degas before taking hydometer readings? Thinking that the CO2 would cause a wrong reading due to sticking to the tube?

 

[Chippy_Tea]

do you degas before taking hydometer readings

No -You cannot degas until fermentation is finished and the only way to know that for sure is taking a hydrometer reading.

 

[MrWoolf]

No -You cannot degas until fermentation is finished and the only way to know that for sure is taking a hydrometer reading.

Sorry i dont think i was clear enough - syphon off some of the brew into a trial jar to take a reading, at this point would you give the stuff in the trail jar a shake to remove some of the CO2?

I guess the question i should be asking is does CO2 effect hydrometer readings?

 

[Chippy_Tea]

I guess the question i should be asking is does CO2 effect hydrometer readings?

Its a good point, i have often read you should spin the hydrometer when you first put it into the trial jar to get rid of any bubbles that may stick to it and give a false reading but i have never read about CO2 in the wine doing the same.

 

[cmwood64]

I usually plunge the hydrometer up and down several times to degas the sample. I find you get a higher reading if you don't degas.

Sent from my Nexus 7 using Tapatalk

 

[engineer]

Hi all,

do you degas before taking hydometer readings? Thinking that the CO2 would cause a wrong reading due to sticking to the tube?

Spin the hydrometer in the liquid and any air or CO2 bubbles should be centrifuged away.

 

[TheQuokka]

I usually plunge the hydrometer up and down several times to degas the sample. I find you get a higher reading if you don't degas.

Sent from my Nexus 7 using Tapatalk

Your higher reading is from the hydrometer being floated by adhering gas bubbles, so spinning it should work just as well.