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Signs it's finished?

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Neal

Got Mead? Patron
GotMead Patron
Mar 11, 2018
41
0
6
NW Florida
My BOMM is a month since pitch. It has been at 0.096 for over a week. I put it on a slow stirplate yesterday until bubbles stopped surfacing. On the stir today (or off, for that matter), no bubbles are surfacing in the carboy, but it's pushing gas thru the airlock at what seems to be a pretty constant rate.

Yes, I know: Airlock activity does not necessarily indicate active fermentation.
So, if the yeast isn't making CO2, where is the gas coming from?
And does stable gravity alone indicate "finished", despite the gas production?
 

loveofrose

Got Mead? Patron
GotMead Patron
Nov 9, 2012
2,582
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38
Texas
CO2 dissolves into solution and slowly outgases over time. If never stirred, a mead can outgas for years after fermentation is done.

You final gravity is impossible. Do you mean 0.960?


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Toxxyc

Worker Bee
Registered Member
Dec 21, 2017
377
12
18
Pretoria, South Africa
Is there a way to get that gas out quickly? I have a bottle that's still gassing weeks after completion and I want to get the gas out of there :D
 

bernardsmith

Got Mead? Patron
GotMead Patron
Sep 1, 2013
1,611
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48
Saratoga Springs , NY
You can raise the temperature a few degrees - colder liquid can hold more gas than warmer; you can pull a vacuum through the liquid - I think you need to be able to pull about 22 inches and that should draw out most or all the CO2. Stirring can also remove gas - I think that works by introducing more energy into the system and that makes the molecules "vibrate" as if you were raising the temperature. But you don't want to stir so vigorously that you pull in air. The fourth method I know is to add points of "nucleation" so adding any stable material (silicone?) where the surface is very rough will form points where the gas will gather. When enough molecules of the gas gather they will have enough energy to leave the solution - but you need to be careful because the gas may have enough energy to push the column of liquid above it as it is expelled from the vessel and that may mean the liquid can paint your ceiling (think Menthos and Coke volcanoes).
 

loveofrose

Got Mead? Patron
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Nov 9, 2012
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That’s completely bone dry. It is definitely done. How does it taste?


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Toxxyc

Worker Bee
Registered Member
Dec 21, 2017
377
12
18
Pretoria, South Africa
You can raise the temperature a few degrees - colder liquid can hold more gas than warmer; you can pull a vacuum through the liquid - I think you need to be able to pull about 22 inches and that should draw out most or all the CO2. Stirring can also remove gas - I think that works by introducing more energy into the system and that makes the molecules "vibrate" as if you were raising the temperature. But you don't want to stir so vigorously that you pull in air. The fourth method I know is to add points of "nucleation" so adding any stable material (silicone?) where the surface is very rough will form points where the gas will gather. When enough molecules of the gas gather they will have enough energy to leave the solution - but you need to be careful because the gas may have enough energy to push the column of liquid above it as it is expelled from the vessel and that may mean the liquid can paint your ceiling (think Menthos and Coke volcanoes).

I'm currently shaking the bottle a few times every day. There's a relatively tight-sealing lid on it that doesn't allow air in, but when I shake it the pressure builds up just enough to let it burp by the side. I'll be doing this until it stops burping. Nothing is keeping my from letting the mead sit in the bottle for a few more months anyway... :p

That's one of my problems; I don't have the vocabulary to describe it.

I had the same experience when I first tasted a bone dry mead. Tastes weird, maybe even a bit "off", but that's a bone dry mead for you.
 

Stasis

Honey Master
Registered Member
Jan 10, 2014
1,123
13
38
Malta
I had the same experience when I first tasted a bone dry mead. Tastes weird, maybe even a bit "off", but that's a bone dry mead for you.

If fermented correctly a bone dry mead should taste just fine
 

Neal

Got Mead? Patron
GotMead Patron
Mar 11, 2018
41
0
6
NW Florida
So, I hooked up the vacuum pump yesterday, and got what I would consider a fair amount of gas out (no, didn't have a gauge on it). After 30-min or so bubbles were down to tiny and few, so I capped It and stuck it in the cooler at 35-F. Tonight, no visible bubbles under vacuum. Wouldn't say it's clearing. Racked it (very little lees back in the cooler.

Darigoni - Poignant observation. Usually, when I tased a wine that's described as 'very good', etc by folks whom I think ought to know (they've had some training/certification), more often than not I think it tastes like dirt...

A couple hours with somebody who can can say 'taste this - normal, run of the mill traditional; this one's off because... you can make it better by...' etc. would really help.
 

Squatchy

Lifetime GotMead Patron
Lifetime GotMead Patron
Nov 3, 2014
5,542
261
83
Denver
So, I hooked up the vacuum pump yesterday, and got what I would consider a fair amount of gas out (no, didn't have a gauge on it). After 30-min or so bubbles were down to tiny and few, so I capped It and stuck it in the cooler at 35-F. Tonight, no visible bubbles under vacuum. Wouldn't say it's clearing. Racked it (very little lees back in the cooler.

Darigoni - Poignant observation. Usually, when I tased a wine that's described as 'very good', etc by folks whom I think ought to know (they've had some training/certification), more often than not I think it tastes like dirt...

A couple hours with somebody who can can say 'taste this - normal, run of the mill traditional; this one's off because... you can make it better by...' etc. would really help.

I'm a certified mead judge and have won tons of awards. You could send me a sample and I can fill out a score sheet as if it was in a competition and also give you suggestions on what might be done to improve it
 

Stasis

Honey Master
Registered Member
Jan 10, 2014
1,123
13
38
Malta
If you like bone dry mead. :)

Even if you don't like bone dry meads. It would taste fine but not to your liking. Fine meaning that there wouldn't be any defects per se. I wouldn't say they taste a little "off" as much as I wouldn't say dry wines taste a little off.
Now that I think of it I'm amazed so many people dislike dry meads especially given that dry wines are so prevalent.
Actually I dislike dry wines a bit more than dry meads because sometimes they're too acidic (I don't like many chardonnays) or too tannic (some nero d'avolas) but in meads I can control exactly the acidity and tannins.
Anyway, my point is: don't go about thinking there is something wrong/inferior with dry meads. If something tastes off you might need to improve your technique rather than try masking it with sweetness
 

Toxxyc

Worker Bee
Registered Member
Dec 21, 2017
377
12
18
Pretoria, South Africa
It's a matter of taste. I can't stand a dry white. Dry mead isn't too nice for me but I do love myself a proper ox-blood dry red. Flavours... :) I think a bone dry mead can be more described as "odd", instead of "off".
 
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