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Old 02-16-2012, 06:13 AM   #1
YBC
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Default Is there a way to tell the OG after fermentation has started?

Drunkenly made a batch of alcoholic ginger beer on Sunday. I took the OG but neglected to write it down. I've taken a hydrometer reading today and it is sitting at 1.014. There is still some fermentation happening and I was expecting it to be a low alcohol level brew. Is there anyway that I can tell what the original gravity was at this stage? I assume it's too late and will just have to guess. I used a brew enhancer that had 500g of dextrose in it for a 23 litre batch.

If not i'll just have to figure it out by guessing after having a few of them.


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Old 02-16-2012, 06:23 AM   #2
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If it's an extract recipe it's hard not to hit the predicted OG if you put the correct amount of wort in the fermenter You can put the recipe into a brew app and it will tell you what the OG should have been...most recipes come with this info.


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Old 02-16-2012, 06:40 AM   #3
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It was an extract recipe. The packaging doesn't have what the OG should have been on it like most of the ones I have done before. Can you link me to one of these brew apps?

Thanks.
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Old 02-16-2012, 06:52 AM   #4
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One way is to use a current refractometer plus a current hydrometer reading. There are calculators that can determine OG I don't have an app for this...my phone is a land line.
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Old 02-16-2012, 08:02 AM   #5
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Hopville's Beer Calculus is the free one I'm most familiar with. You can pull out the big guns with things like BeerSmith, but figuring out an OG isn't a great reason to invest in brewing software. Hope this helps!
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Old 02-16-2012, 08:22 AM   #6
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Thanks heaps guys. Think i've come to the conclusion it was 1.030. Just a good lesson not to forget to measure at the beginning. Cheers.
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Old 02-16-2012, 12:48 PM   #7
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Quote:
Originally Posted by YBC
Thanks heaps guys. Think i've come to the conclusion it was 1.030. Just a good lesson not to forget to measure at the beginning. Cheers.
Can u paste the recipe in here? 1.030 seems very low.


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