Alcohol measurement without SG ?

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geoffclifton
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Alcohol measurement without SG ?

Post by geoffclifton »

I've got a few brews for which I don't have SG's to calculate alcohol content.
An orange wine which included the zest and was very foamy plus a ginger beer which had a lot of undissolved sugar that may or may not have fermented but wasn't measured at OG.

Is there a way to get a measurement other than drinking a couple of bottles and checking for wobbly boots or blowing in a breathalizer?

Cheers, Geoff.
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drsmurto
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Post by drsmurto »

Apart from finding someone with access to analytical instruments (HPLC, GC etc) you really cant do much. Think i would prob get into some serious shit if i started putting beer thru instruments worth over 500K. :lol:

I dont bother much with SG/FG/OG or whatever bloody abbreviation you prefer. Does it taste good? All that matters!
Chris
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Post by Chris »

Basically, no.
Pale_Ale
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Post by Pale_Ale »

Do you mean fermentation was stuck?

If fermentation is complete, the yeast has eaten through all the fermentable sugars, so you can just calculate the approx percentage based on what you put in originally. For instance 1kg malt 80% fermentable, 3kg oranges x% fermentable etc. etc.

Sorry if I'm not getting it...
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Chris
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Post by Chris »

Ok PA, what's the fermentation %age of 3kg of oranges? :D
geoffclifton
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Post by geoffclifton »

That would be a hard one Chris. I didn't weigh the pith and pulp and skins but that's at least half and the next question is the sugar content basedd on ripeness and sweetness. Probably safe to say bugger all and just work on the fermentable sugars?

Cheers, Geoff.
Pale_Ale
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Post by Pale_Ale »

Fair enough Chris, well I can always fall back on the answer of "who cares? Drink up!" :lol:
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Cortez The Killer
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Post by Cortez The Killer »

Isn't there a way to work backwards to OG with a refractometer and a hydrometer?

I was reading about it the other day

Cheers
He came dancing across the water.
Cortez, Cortez. What a killer!
Oliver
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Post by Oliver »

Where's Dogger Dan when you need him?

Oliver
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