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casualgrower


Registered: 07/18/14
Posts: 300
Loc: Estonia
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Diluting ethanol with vodka, formula.
#23945194 - 12/21/16 04:20 AM (7 years, 1 month ago) |
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Heyya,
So I have collected like half a kilo of dried reishi from my previous grows and will try to make a double extracted tincture from it. I scored 4 liters of 91% drink-grade booze from a mate of mine and now i need to trim it down to 70%. I'm thinking of using regular 40% vodka to trim it down, in order for the final volume of the booze to be as large as possible...
There's a lo of info on how to dilute ethanol with water, but very little info on how to do it with vodka.
My question, does anyone have a fromula on how to dilute strong alcohol with milder alcohol to desired strength?
Shroom on. Casual.
-------------------- The depth of undiscovered knowledge laying before us is more vast than our minds can imagine...
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Snagman17
Stranger

Registered: 03/21/16
Posts: 168
Last seen: 5 years, 4 months
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Re: Diluting ethanol with vodka, formula. [Re: casualgrower]
#23945297 - 12/21/16 06:48 AM (7 years, 1 month ago) |
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I don't have a formula, and I'm REALLY bad at math, but if you have a home brew shop near you could pick up a hydrometer.then keep adding vodka until you get the desired proof.
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Ferather
Mycological



Registered: 03/19/15
Posts: 6,325
Loc: United Kingdom
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Re: Diluting ethanol with vodka, formula. [Re: Snagman17]
#23945344 - 12/21/16 07:34 AM (7 years, 1 month ago) |
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91% - 25% = 68%. So add water until 25% water. 33g of water per 100g of 91%. 33 / 133 = 0.248, 0.248 x 100 = 24.8% water, 75.2% (91%).
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Quadman
Challenged


Registered: 04/23/16
Posts: 2,529
Loc: IL
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Re: Diluting ethanol with vodka, formula. [Re: Ferather]
#23945361 - 12/21/16 07:52 AM (7 years, 1 month ago) |
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If you mix half 40% alcohol and half 91% alcohol you would have 65.5% alcohol
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Ferather
Mycological



Registered: 03/19/15
Posts: 6,325
Loc: United Kingdom
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Re: Diluting ethanol with vodka, formula. [Re: Quadman]
#23945364 - 12/21/16 07:57 AM (7 years, 1 month ago) |
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You could also do it that way, with the average of the difference.
100g (91%) + 100 (40%) = difference 51, 51 / 2 = 25.5. 91 - 25.5 = 65.5% over 200g. As Quadman said.
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casualgrower


Registered: 07/18/14
Posts: 300
Loc: Estonia
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Re: Diluting ethanol with vodka, formula. [Re: Ferather]
#23945374 - 12/21/16 08:10 AM (7 years, 1 month ago) |
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superawesome, guys thanks much! I'll start grinding the reishi tomorrow.
-------------------- The depth of undiscovered knowledge laying before us is more vast than our minds can imagine...
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Speeker

Registered: 02/11/04
Posts: 878
Loc:
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Re: Diluting ethanol with vodka, formula. [Re: Ferather]
#23945407 - 12/21/16 08:24 AM (7 years, 1 month ago) |
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(4000*0.91+X*0.40)/(4000+X)=0.70 using a spreadsheet one can find that X=2800 is the pretty close.
But, is 91% still 91% ? Also see the answer here http://cooking.stackexchange.com/questions/28353/how-to-determine-the-alcohol-content-of-a-mixed-drink
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Speckles
Sober AF



Registered: 09/19/13
Posts: 236
Last seen: 1 year, 4 months
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Re: Diluting ethanol with vodka, formula. [Re: Speeker]
#23945673 - 12/21/16 10:18 AM (7 years, 1 month ago) |
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Another way of writing the equation speeker posted is
.91X+.4Y = .70 (X+Y)
Where X is 4 liters (or 4,000 mL)
The numerator is the total volume of the alcohol and the denominator is the total volume. Dividing them gives you the percent of alcohol by volume. (%ABV)
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micelio
Song of Silence


Registered: 04/22/14
Posts: 1,547
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Re: Diluting ethanol with vodka, formula. [Re: Speckles]
#23949569 - 12/22/16 04:09 PM (7 years, 1 month ago) |
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I would use the 91% alcohol for your alc.extract and tone it down with your water extract..
Use this online calculator http://homedistiller.org/calcs/rad14701
Use the Dilution Calculator....
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Forrester
aspiring sociopath


Registered: 02/05/13
Posts: 9,351
Loc: Northeast USA
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Re: Diluting ethanol with vodka, formula. [Re: micelio]
#23949860 - 12/22/16 06:44 PM (7 years, 1 month ago) |
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Quote:
micelio said: I would use the 91% alcohol for your alc.extract and tone it down with your water extract..
Use this online calculator http://homedistiller.org/calcs/rad14701
Use the Dilution Calculator....
^^^ That!
-------------------- Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here. ------------------- Have some medicinal mushrooms and want to get the most out of them? Try this double extraction method.
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Quadman
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Registered: 04/23/16
Posts: 2,529
Loc: IL
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Re: Diluting ethanol with vodka, formula. [Re: Forrester]
#23950088 - 12/22/16 08:26 PM (7 years, 1 month ago) |
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I think he will he's just trying to get a large amount of pure alcohol for the first soak. Not sure if it really matters which way you do it.
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Forrester
aspiring sociopath


Registered: 02/05/13
Posts: 9,351
Loc: Northeast USA
Last seen: 25 days, 18 hours
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Re: Diluting ethanol with vodka, formula. [Re: Quadman]
#23950119 - 12/22/16 08:36 PM (7 years, 1 month ago) |
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Quote:
Quadman said: I think he will he's just trying to get a large amount of pure alcohol for the first soak. Not sure if it really matters which way you do it.
The more alcohol in the first soak, the better, that's why I seconded that post. I don't have a good source for pure organic grain alcohol or I'd use that. But you're totally fine using 100 proof (50%) for the alcohol soak. Anything more is better, so use that if ya got it and just dilute later by adding more of your decoction, like stated.
-------------------- Repugnant is a creature who would squander the ability to lift an eye to heaven, conscious of his fleeting time here. ------------------- Have some medicinal mushrooms and want to get the most out of them? Try this double extraction method.
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