A little confused about the SG reading?

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luke5481
Posts: 7
Joined: Saturday May 03, 2008 7:53 pm

A little confused about the SG reading?

Post by luke5481 »

Should I be taking the SG reading before or after pitching the yeast? The basic instructions on this forum say before, but in the instructions on Oliver and Geoff's webpage it says after. Now that I am actually trying to take the reading, taking the reading at the correct time will probably help :)
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warra48
Posts: 2084
Joined: Wednesday Apr 04, 2007 12:45 pm
Location: Brissy QLD

Re: A little confused about the SG reading?

Post by warra48 »

I always take a reading after I drain my kettle into the fermenter.
I usually don't pitch my yeast until the next morning, as I chill my fermenter overnight, by which time it's down to 18ºC for ales. For lagers I wait until it's 10ºC.
My immersion chiller will get my boil down to about 28ºC, unless I put my cooling water through an ice packed pre-chiller first, when I can get it down to low 20ºC or so.

The short answer, my practice is to do it before pitching your yeast.
scanman
Posts: 218
Joined: Thursday Jul 12, 2007 4:04 pm
Location: Mt Annan NSW

Re: A little confused about the SG reading?

Post by scanman »

I don't think it makes much difference if you take your start gravity reading before or after. I don't think the yeast effects the reading at all at the start. Long as you take it before your batch has started to brew thats all that matters.
Who ever said nothing was impossible, never tried to slam a revolving door....
hoohaaman
Posts: 44
Joined: Saturday Apr 21, 2007 2:20 am

Re: A little confused about the SG reading?

Post by hoohaaman »

Technically you take your sg before innoculation,because after innoculated it is no longer wort but beer!

But you will still have the same reading for a while,after innoculation.

Cheers
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