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Offline sisco  
#1 Posted : Saturday, November 24, 2012 4:20:55 PM(UTC)
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I understand that if you are making a sugar wash that you should do a stripping run hard and fast in pot still mode. Say if I started with 25l of was at 14% or so I should end up with around 3/4 of a gallon after stripping. So I cut that with water to around 120 proof( am I right here?) and then run it slow in reflux mode watching my cuts. How much should it yeild of finished product after this. Secondly the pot is 8 gallons or so. Is it safe to run only a gallon in there using propane?
Offline muadib2001  
#2 Posted : Saturday, November 24, 2012 4:34:57 PM(UTC)
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Dude, if you are going to re-run that, you need to cut it down to at least 35% alcohol before re-distilling, maybe less. Otherwise, you might have an explosion. And you don't want to be anywhere NEAR that.
Offline ohyeahyeah  
#3 Posted : Saturday, November 24, 2012 8:46:26 PM(UTC)
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Originally Posted by: muadib2001 Go to Quoted Post
Dude, if you are going to re-run that, you need to cut it down to at least 35% alcohol before re-distilling, maybe less. Otherwise, you will have an explosion. And you don't want to be anywhere NEAR that.


Excuse me? Facts please, don't just perpetuate myths you have read. When they make scotch or irish whiskey and triple distill they never cut it. Low wines about 35%, high wines 65% and final product around 80%.

To the original poster. If you are using a reflux still like sold by Brewhaus there should be no need for a stripping run. Just run it nice and slow once. If you are doing stipping runs usually you will do at least three boiler charges to collect enough to be worthwhile doing a final spirit run. The only time i will water down for a spirit run is if im doing a bourbon grain bill and want my final product to come off at 80% for hearts. Thats on a pot still with thumper and i know anything with 20% or better charge is going to give me 85% or a little better for hearts so i'll water down to around 15 which give me my hearts at about 80.
Offline cczero  
#4 Posted : Sunday, November 25, 2012 2:08:30 AM(UTC)
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"
Originally Posted by: sisco Go to Quoted Post
I understand that if you are making a sugar wash that you should do a stripping run hard and fast in pot still mode. Say if I started with 25l of was at 14% or so I should end up with around 3/4 of a gallon after stripping. So I cut that with water to around 120 proof( am I right here?) and then run it slow in reflux mode watching my cuts. How much should it yeild of finished product after this. Secondly the pot is 8 gallons or so. Is it safe to run only a gallon in there using propane?


From 3 stripping runs (5 gals of sugar wash) I usually have 3.5 to 4 gals at around 35 ABV that make it to the spirit run.
The recipe I use will usually produce about 10 ABV. I've only been able to get 14 ABV once. I wouldn't process 1 gallon. I'd wait until I had enough to make it worth while, IMHO."
Offline muadib2001  
#5 Posted : Sunday, November 25, 2012 4:51:32 AM(UTC)
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Originally Posted by: ohyeahyeah Go to Quoted Post
Excuse me? Facts please, don't just perpetuate myths you have read. When they make scotch or irish whiskey and triple distill they never cut it. Low wines about 35%, high wines 65% and final product around 80%.
"You can save all and redistill but you should dilute down ESPECIALLY if using flame heat so you dont create a bomb. I usually dilute down to 40%(80 proof) for distiiling stripped runs or just to re distill a crappy product that didnt come out to good which I have not had to do(Yet)!"
http://www.brewhausforum...ad.php?1130-General-help

"When you redistill make sure you add some water to your pot along with your distillate."
http://www.brewhausforum...lcohol-yield-please-help

"But if you strip first then dilute your spirit run boiler charge to 40% or lower"
http://www.brewhausforum...1-Newbie-Questions/page2

"then dilute it back down to below 40% and re-distill."
http://www.brewhausforum...read.php?1477-Blue-hooch

"Open flame? Definitely dilute to 40% or less.
Lectric? Better safe than sorry. Dilute to 40% or less (or not)."
"any thing over 40% while using an open flame could surely send you to the pearly gates if you spring a leak or some such catastrophe."
http://www.brewhausforum....php?1440-Double-distill
Offline ohyeahyeah  
#6 Posted : Sunday, November 25, 2012 5:49:10 AM(UTC)
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Exactly, you make my point. Misinterupting and regurgitating things you have read with no actual proof or science.

The only comment in any of those threads that rings true was from LWTCS when he explains if you spring a leak its going to be very dangerous huge potential fire hazard. Though a 35% charge will still burn. That of course is liquid side. If you spring a vapour leak with open flame it really doesn't matter what the boiler charge is, you have a huge potential for a fire and a much smaller potential for an explosion. Of course it begs the question, what kind of boiler has the potential to spring a liquid leak? Maybe some homemade copper rig half assed put together with plumbing solder. Some how i doubt a purpose built stainless boiler has that potential.

To get an explosion you need a sealed container. A still is not a sealed container. Take the cap off of a jerry can and light in on fire then see what happens. I will tell you from experience, it won't blow up. Under the right(wrong) circumstances a still does have the potential to explode but its only the vapour that actually burns, so your boiler charge really won't effect that. The vapour coming off a 20% charge has basically the same potential for ignition as a 40%+ charge.

With a relux still there is not real point in going over 35% on the boiler charge. But pot stillers do it regularly to achieve a high abv.

Its not the advice to err on the side of safety that bothered me about your post. It was you statement "otherwise you will have an explosion". Thats vulgar and false. "you will", not you might, you may have the potential too, but "you will". Uhmm...no. If something goes drastically wrong you have the potential for an explosion. Your implication is heating alcohol over 35% will explode. There is simply no truth to that.

On a side not people that make weed oil use 99.99 iso alcohol and manage to not blow themselves up. Hmmmm....
Offline muadib2001  
#7 Posted : Sunday, November 25, 2012 6:46:31 AM(UTC)
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You stated a good argument. Can you provide proof from elsewhere to back it up? Otherwise, I'll just regurgitate what you've written. And you stated that was a bad thing to do without actual proof or science. BigGrin
Offline Bushy  
#8 Posted : Sunday, November 25, 2012 9:55:33 AM(UTC)
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Hi , did anyone watch the "Moonshiners" show? The two digging the underground still house use a cardboard tube with 1 lb of smokeless powder with wooden plugs at both ends to blow a rock out. It only fizzeled. It was'nt until they taped the plugs in and taped around the tube that they got an explosion.
Now if you have a vapor leak that fills the room with alcohol vapor and there is a spark or flame it comes in contact with you will then have an explosion due to the ammount of vapor in the room.
You need to have a rapid expansion of enough gasses in a confined space in order to have an explosion. A 50BMG cartridge has more powder in it than a handgrenade and yet it does'nt explode unless something blocks the exit of the bullet.
BH stills have a cork at the top of the tower which can be thought of as the cork in a pop gun that releases to great of a pressure build up, a safety valve of sorts.
The only time I can think of where boiling a higher proof alcohol would be extremly dangerous is if the liquid became super heated where the expansion of gas would be enough to overcome the ability of the BH tower to expell the gasses.
Nough said on my part. I cut mine down to no more than 50% for a spirit run. To each his own.
Offline ohyeahyeah  
#9 Posted : Sunday, November 25, 2012 12:51:41 PM(UTC)
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Originally Posted by: muadib2001 Go to Quoted Post
You stated a good argument. Can you provide proof from elsewhere to back it up? Otherwise, I'll just regurgitate what you've written. And you stated that was a bad thing to do without actual proof or science. BigGrin


I'm not sure what i need to back up. Bushy made my point about explosion. And yes Bushy, i have been following this season. I don't really get why those boys and putting so much time, money and effort into a hidden still location then advertising its location meaning they can only use it before the show broadcasts. Am i the only one that thinks the shows new cop looks like he could be Tim's brother? But i digress.

As far as my point about pot stillers often running higher abvs if you check out the video thread and watch the irish whiskey video you will see what i was talking about them running their product three times through pot stills. Starting with their wash/beer, then low wines and the final stage high wines to finish with a product of about 80%.

If you don't beleive that only the vapour burns take some of your own uncut, say an ounce and put it in a jar and light it. It will burn a long time as the liquid turns to vapour. You can blow it out and restart it. You can even put a lid on it while its burning and it will just run out of oxygen and burn itself out.

And as far as my point about the vapour off of a 20% wash being about as volitile as a 40% or higher at distilling temps here is a flash point chart for ethanol at different temps from wikipedia.

"Flammability

An ethanol-water solution that contains 40% ABV will catch fire if heated to about 26 °C (79 °F) and if an ignition source is applied to it. This is called its flash point.[31] The flash point of pure ethanol is 16.60 °C (61.88 °F), less than average room temperature.[32]

The flash points of ethanol concentrations from 10% ABV to 96% ABV are shown below:[33]

10% — 49 °C (120 °F)
12.5% — about 52 °C (126 °F)
20% — 36 °C (97 °F)
30% — 29 °C (84 °F)
40% — 26 °C (79 °F)
50% — 24 °C (75 °F)
60% — 22 °C (72 °F)
70% — 21 °C (70 °F)
80% — 20 °C (68 °F)
90% — 17 °C (63 °F)
96% — 17 °C (63 °F)

Alcoholic beverages that have a low concentration of ethanol will burn if sufficiently heated and an ignition source (such as an electric spark or a match) is applied to them. For example, the flash point of ordinary wine containing 12.5% ethanol is about 52 °C (126 °F)."


As you can see from this even the weakest of normal washes will burn at the temps you run in a still.
Offline muadib2001  
#10 Posted : Sunday, November 25, 2012 2:22:27 PM(UTC)
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Apparently then, we are all flirting with danger when we heat up our pots with just a 12.5% charge, since we are all going well over the flashpoint of 126°F. And only by containing the vapors and condensing them back down to liquid are we (relatively) safe.

Why then do I see so many references to diluting down to under 40% (or so) on this site and HD forum by several respected distillers with considerable experience?

You seem to advocate going against their recommendations and running a higher % charge on redistilling. With so many references on this site and HD to dilute to ~40% for a redistill, don't you feel you're (possibly) putting someone in danger by saying to go higher?

I would rather err on the side of experience and dilute down to under 40% for a redistill.

Thanks for the discussion. :)
Offline ohyeahyeah  
#11 Posted : Sunday, November 25, 2012 2:44:48 PM(UTC)
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If your pot is secure and your set up is sealed and you pay attention to what you are doing then you are safe. But yes there is a potential for danger if you aren't meeting those criteria even at a 12% wash.

There is a lot of "group think" on both sites. Some one says it, it seems to makes sense so it gets repeated. Doesn't make it true.

I post on a chevy site where someone asked what stall speed of a torque converter means. A bunch of people including an admin explained the common misconception of what stall speed means. I explained what stall speed actually means which i learned in college and backed it up with site references from actually informational sites as opposed to forums. Then i got admonished by and admin who had answered the question incorrectly who explained that it was easier to understand the way he and everyone else explained it,even though it was wrong. Thats the power of group think. Even confronted with actual facts some will choose to stick their heads in the sand.

No i don't think i am putting anyone in danger. If your boiler has a leak or may develop one you are flirting with disaster and thats not my fault. If you think running a lower abv% in your boiler is going to save you from disaster if you aren't using quality equipment and paying attention to what you are doing your are just giving yourself a false sense of security. I have provided you with real information from an information site. If you choose to beleive common misconception thats your right.

And the other forum only has a handful of actual knowledgable people on it that i can tell. That site has a serious problem with post whores, followers and group think.
Offline Farmin in the woods  
#12 Posted : Sunday, November 25, 2012 6:21:46 PM(UTC)
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"Sisco, I have a BH hi-cap unit with large pot, and i've run several sugar/water batches, almost all in reflux mode. I have used bakers yeast and distillers yeast, and can usually count on a pint of hi proof (75-85%abv) per pint, which makes almost a quart of 45% for every gallon of wash. I've never seen the need to run a neutral in stripping runs, the reflux does it all in one run.
Hope this helps.
Farmin"
Offline Maddawgs  
#13 Posted : Monday, November 26, 2012 12:25:19 AM(UTC)
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Originally Posted by: ohyeahyeah Go to Quoted Post
If your pot is secure and your set up is sealed and you pay attention to what you are doing then you are safe. But yes there is a potential for danger if you aren't meeting those criteria even at a 12% wash.

There is a lot of "group think" on both sites. Some one says it, it seems to makes sense so it gets repeated. Doesn't make it true.

I post on a chevy site where someone asked what stall speed of a torque converter means. A bunch of people including an admin explained the common misconception of what stall speed means. I explained what stall speed actually means which i learned in college and backed it up with site references from actually informational sites as opposed to forums. Then i got admonished by and admin who had answered the question incorrectly who explained that it was easier to understand the way he and everyone else explained it,even though it was wrong. Thats the power of group think. Even confronted with actual facts some will choose to stick their heads in the sand.

No i don't think i am putting anyone in danger. If your boiler has a leak or may develop one you are flirting with disaster and thats not my fault. If you think running a lower abv% in your boiler is going to save you from disaster if you aren't using quality equipment and paying attention to what you are doing your are just giving yourself a false sense of security. I have provided you with real information from an information site. If you choose to beleive common misconception thats your right.

And the other forum only has a handful of actual knowledgable people on it that i can tell. That site has a serious problem with post whores, followers and group think.


Hi OYY,
This is a pretty informative and very helpful post, just wanted to say thanks. By the way, I love the term "post whores"BigGrinBigGrinBigGrin
Maddawgs
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