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Old 01-12-2017, 05:20 PM   #11
Zephyr259
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So.. I've just checked it on the refractometer. It's sitting at 1017.. which seems pretty high. Do you think it's stuck?

I missed OG by a country mile, and started at 1039 (was meant to be 1046). So if it's done all it can, it's good for the drain. You think I should give it a mix up and see if the yeast will kick back off?

It's only been in the primary since Monday. But there's no more activity.
Asking the question just to be sure. Are you adjusting the refractometer reading for the presence of alcohol?
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Old 01-12-2017, 06:19 PM   #12
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Asking the question just to be sure. Are you adjusting the refractometer reading for the presence of alcohol?


I have absolutely no idea what you just said.. so I’m gonna go with no! Lol. Should I do something special? First time I’ve used a refractomer!


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Old 01-12-2017, 07:05 PM   #13
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Have a look here. - https://www.brewersfriend.com/refractometer-calculator/ it's a bit confusing, and to get it totally accurate you need to do a bunch of small tests to calibrate your refractometer.

Alcohol affects the reading of a refractometer making it read artificially high. I've not used one myself but done a bit of research as I want one to allow for quicker readings during brew day and not needing 50 - 100 mls per sample during fermenatation, which is especially annoying if doing a 1 gallon batch of mead.

Assuming no correction factor I plugged your figures of 1.039 (9.75 brix) and 1.017 (4.25 brix) into the 2nd calculator and it comes out as an adjusted FG of 1.008 and 4.13%, which is 79.5% apparent attenuation and pretty good.

Hope this helps.
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Old 02-12-2017, 08:25 AM   #14
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Leave the yeast to do its work.

Most of my wheats have had a pretty vigorous fermentation, but I've had a couple of other types - notably my saison - which fermented slowly but steadily. In the case of the saison it went from 1.044 to 1.020 in five days but eventually finished at 1.002 after another 10 days.
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Old 02-12-2017, 09:31 AM   #15
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Nice! Other than missing OG by about a country mile, forgetting the bitter orange peel AND the the corriander seeds.... Maybe, it'll be an okay beer. But it's likely to come in at around 4% and probably be pretty bland.
Try making a simple list of what you're going to do in order..............and I hope you're not drinking whilst brewing young man. It's far too serious a business to cloud it with alcohol.
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Old 02-12-2017, 11:19 PM   #16
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Originally Posted by Zephyr259 View Post
Have a look here. - https://www.brewersfriend.com/refractometer-calculator/ it's a bit confusing, and to get it totally accurate you need to do a bunch of small tests to calibrate your refractometer.

Alcohol affects the reading of a refractometer making it read artificially high. I've not used one myself but done a bit of research as I want one to allow for quicker readings during brew day and not needing 50 - 100 mls per sample during fermenatation, which is especially annoying if doing a 1 gallon batch of mead.

Assuming no correction factor I plugged your figures of 1.039 (9.75 brix) and 1.017 (4.25 brix) into the 2nd calculator and it comes out as an adjusted FG of 1.008 and 4.13%, which is 79.5% apparent attenuation and pretty good.

Hope this helps.
Thanks for the information, I'm going to need to read it properly to digest it. All the recipes I've seen talk about IG, so Brix is just something else to confuse things. And that calculator seems to only work in Brix.
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Old 02-12-2017, 11:20 PM   #17
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Try making a simple list of what you're going to do in order..............and I hope you're not drinking whilst brewing young man. It's far too serious a business to cloud it with alcohol.
I must do the list, that's sensible. A bit too sensible for me, but I'll have a play at being a grown up for a bit. Drinking while brewing? That's the only reason I brew! A sober brew day is..... well I don't know what it is! It's never happened lol.
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Old 03-12-2017, 09:42 AM   #18
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So.. I've just checked it on the refractometer. It's sitting at 1017.. which seems pretty high. Do you think it's stuck?

I missed OG by a country mile, and started at 1039 (was meant to be 1046). So if it's done all it can, it's good for the drain. You think I should give it a mix up and see if the yeast will kick back off?

It's only been in the primary since Monday. But there's no more activity.


Surely you need a hydrometer reading as the alcohol will skew the refractometer reading? You can get a true gravity then.


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Old 03-12-2017, 09:43 AM   #19
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Surely you need a hydrometer reading as the alcohol will skew the refractometer reading? You can get a true gravity then.


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Sorry, didn’t read page two!


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Old 03-12-2017, 10:55 AM   #20
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Maybe your refractometer is out.
I got one from eBay and the readings are way out compared to my hydrometer
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