Surging

Distillation methods and improvements.

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Jed

Surging

Post by Jed »

Before my last run I repacked my colunm with copper mesh and did away with the marbles. With 12 gallons of wash going, 7 1/2 hours later I had a gallon of over 95 ABV and the temp didn't rise over 176F before I stopped. (It was 1:00 am and I was getting cold). I think this was some of the best I have ever brewed.
The problem was the whole time it was surging.
The reflux colunm has the lower and upper cooling lines through the colunm, (I know bad design but I built it before I knew better).
Do you think it was the packing, (too loose/too tight?)
Do I need to do away with the lower 1/2 inch cooling line through the colunm?(Cut it on each side and cap it off?)
Could it be a combination of both?
Maybe not keep the water temp so cool going through the colunm?
It turned out great but from burner ignition to shutdown was 8 1/2 hours for a gallon and I think that's a little long.
Any feedback will be greatly apeciated.
TRANSPLANTED HILLBILLY
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Post by TRANSPLANTED HILLBILLY »

Are you still using the hotplate you referenced in another post. If so, I would bet that is your surging problem. A source of steady heat is a must. Hotplates have a thermostat that causes them to cycle off/on.

PROPANE RULES!
If it was easy everybody would do it.

Please join the Partnership For an Idiot Free World.
Jed

Post by Jed »

No...I use propane with the 15 gallon keg.
I quit using the hotplate with the small still, for me, gas is just easier to fine tune.
sherriff Buffoerd pusser
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Location: west tennessee

Post by sherriff Buffoerd pusser »

I have same design its on 1500 watt element it surged before on gas but now it has nice steady drip.mine will 94 per but it takes about 5 hours to run 5 gal. wash.But it is very steady.
whats life without a challenge
LeftLaneCruiser
Swill Maker
Posts: 230
Joined: Wed Oct 27, 2004 6:11 am
Location: Fryslân

Post by LeftLaneCruiser »

You say you collected about a gallon over a timespan of a bit more than 8 hours..
That's 4 liters in 8 hrs, is about 500 mls/hr. That doesn't sound very bad.
Keep in mind that quality takes time. I take my good stuff at abut the same rate. You can go faster, but you'll find that back in the quality.
So basically it is the one or the other: good quality product which doesn't neet carbon polishing, or fast(er) take-off rate and foul vodka. It's your call...

KJH
Jed

Post by Jed »

Yea, I don't think I'm going to try and change anything, the product was worth the wait. I just need to start earlier and plan on a long run.
hornedrhodent
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Location: Nth coast NSW

Post by hornedrhodent »

Hey Jed - did you kill off grannie?
Jed

Post by Jed »

No, I didn't kill her, but I did mount her, from the rear. She hollered like I was killin her though.
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