vacuum and double boiler

Many like to post about a first successful ferment (or first all grain mash), or first still built/bought or first good run of the still. Tell us about all of these great times here.
Pics are VERY welcome, we drool over pretty copper 8)

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skow69
Master of Distillation
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Joined: Tue Dec 06, 2011 3:03 am
Location: Cascadia

vacuum and double boiler

Post by skow69 »

I'm a build-it-with-whats-on-hand kinda guy by inclination, for both economic and
ecological reasons. When I started talking about a still a few months ago a buddy brought
me a 5 gal pressure canister for a soda fountain. It seemed like a good place to start, but
I didn't have a good way to heat it directly because of the 2 inch plastic base so I put it
in another pot, double boiler style. Then it took forever to heat up so I start playing
with vacuum. Pretty soon it looked like this. I know it ain't pretty but it does
actually distill alcohol.
s2 002a.png
still 029.JPG
s2 003a.png

I test ran a couple gals. cheap vodka solution 12
1/2%ABV. Stablized at 27in.hg and 142F. Collected 3 bottles. 14 oz. 45ABV, 14 oz.
23ABV, and 14 oz. 7 ABV. Does that look ok?

Here's a question. My product outlet is way undersize compared to an alembic stillhead. What am I compromizing there? I could probably tap the cap and get up to 2 1/2 in. or so dia. Pot still only. Don't need lots of reflux.
still 045.JPG
still 043.JPG
I've been reading you old pros saying don't use a thermometer, but I need the crutch! I need the airlock, too. I need something to look at and fret about 'cause I don't know what the hell's going on inside the pot and it's making me crazy!

I think I'm ready for drinkables. Today I loaded 2 gal. 50% vinegar solution. Stablized around 20in.hg and 170F. Need to
find vinegar b.p.
I shut down the cleaning run on the forth bottle. Couldn't take any more. :(
s3 006.JPG
Rad14701 suggested putting an electric element in the pop can. Good idea. Vacuum distilling just wasn't as much fun as it seemed like. And I don't think it's even saving any time.
It took 5 1/2 to 6 hrs to collect 3 1/4 qts. of the vinegar solution. But this is my
first still, i've gothing to compare to. Anybody? And that's after 6 hrs. of screwing
with the vacuum apparatus. The pop can wants to jump around some, too. That must be what they call bumping. I've been listening to the sink run for like 12 hrs now.
Sounds like it's raining. Gets really depressing after a while. :cry:
Probably do it for $20 or
so. Thanks Rad. I'm going to the liquor store.
Appreciate feedback.
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Distilling at 110f and 75 torr.
I'm not an absinthe snob, I'm The Absinthe Nazi. "NO ABSINTHE FOR YOU!"

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