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Welding copper to be drinking safe

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old
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PostPosted: Wed Oct 31, 2012 7:38 am    Post subject: Welding copper to be drinking safe Reply to specific post Reply with quote

Did not want to cut into the other post but if you where say making a small still for home drink what and how would you weld up a copper tank for the still and have it safe for a person to drink the stuff. Years ago ding it with all glass would have been easy but now days seems to old chemistry set stuff is hard to find and if you do it is all the small type stuff not the big 10 liter flasks etc.
 
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wisbaker
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PostPosted: Wed Oct 31, 2012 7:48 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Never heard of or saw anyone weld copper. I think I would just use lead free solder and solder it together like you do copper plumbing.
 
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Geo-TH,In
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PostPosted: Wed Oct 31, 2012 8:29 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Old,
Not sure what you are asking, Welding copper? Do you want to make a still out of copper and have it safe to drink the moonshine? Well I've never seen anyone weld copper. I have used silver solder on copper. Before the Hunt brothers jacked the price of silver solder it was about 20x cheaper that today's price. When a copper line is attached to the steel on an A/C compressor it is silver soldered. There shouldn't be any lead in silver, unless it's made in China. You will need to get the proper flux and cleaners when using silver and an oxy/acet. torch to get it hot enough.

Post a pic of your still.

George
 
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old
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PostPosted: Wed Oct 31, 2012 9:12 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Just one of those things we are wanting to build for more then one reason. Figure if it hits the fan like some say it is going to having a still will keep engines going plus keep a person with something to drink other then water LOL
 
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kevinj54
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PostPosted: Wed Oct 31, 2012 9:33 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

old wrote:
(quoted from post at 12:38:29 10/31/12) Did not want to cut into the other post but if you where say making a small still for home drink what and how would you weld up a copper tank for the still and have it safe for a person to drink the stuff. Years ago ding it with all glass would have been easy but now days seems to old chemistry set stuff is hard to find and if you do it is all the small type stuff not the big 10 liter flasks etc.


Braze it with sil phos like we do for refrigeration lines.
 
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jackinok
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PostPosted: Wed Oct 31, 2012 9:47 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

wheres the corn for mash and the sugar coming from?LOL any of the modern plumbing sold should work if you are carefull to not let your pots get dry and too hot. if thats a concern, better make sure youve got a popoff or pressure relief valve or youve got a bomb and not a still! doubt very seriously if you could distill enough to make enough fuel, to raise enough mash,to make enough fuel etc etc.or raise/harvest enough sugar cane to produce sugar,raise /harvest enough corn to make mash, plant /grow/cut enough firewood for fuel,of course you could make enough liquid stupidity that you really wouldnt care!!!LOL easier to make wine for that though. besides when it gets to that point,a plain old water still would probably make more money.
 
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johnpop1
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PostPosted: Wed Oct 31, 2012 9:52 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

TIG welding copper is pretty standard stuff these days. Most compitent welders can probably do it with proper equipment. The easier way would be to silver braze the joints with 45% silver braze alloy.
 
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dave2
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PostPosted: Wed Oct 31, 2012 10:02 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

old wrote:
(quoted from post at 08:38:29 10/31/12) Did not want to cut into the other post but if you where say making a small still for home drink what and how would you weld up a copper tank for the still and have it safe for a person to drink the stuff. Years ago ding it with all glass would have been easy but now days seems to old chemistry set stuff is hard to find and if you do it is all the small type stuff not the big 10 liter flasks etc.


Just sweat it with a propane torch and solder.......
 
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rd 2N in mo
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PostPosted: Wed Oct 31, 2012 10:18 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

go search for "Popcorn's still" on utube and you will find most info for what you need
 
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hintocw
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PostPosted: Wed Oct 31, 2012 11:02 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

You can find all the chemistry apparatus/equipment you need on the internet for making a 'still.
 
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Geo-TH,In
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PostPosted: Wed Oct 31, 2012 11:29 am    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Are you going to change your name to OLDMOONSHINER?
 
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wisbaker
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PostPosted: Wed Oct 31, 2012 12:27 pm    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

As far as glass apparatus you're looking in the wrong place-try a dairy salvage place and ask for a pipeline receiver. Stainless steel also works quite well for distillation vessels but doesn't have the romance that copper does and some claim the copper interacts with the mash to impart some flavors into the liquor. Many of the new stills in the distilleries in Kentucky are stainless steel, but I know of one that keeps the stainless line hid from the public and shows off the old copper still that's over 100 years old. Stainless steel is also easy to weld with a TIG unit as long as you back purge what you're welding on to prevent oxidation of the stainless steel, a lot of people in the dairy, cheese and beverage industries are competent in making food grade welds in stainless.
 
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old
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PostPosted: Wed Oct 31, 2012 1:37 pm    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

NO
 
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Greg_Ky
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PostPosted: Wed Oct 31, 2012 2:10 pm    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Rich, don"t use any silver bearing solder because of the cadmium. If you can get your hands on silicon bronze wire or stick that is what you want to use. If you need help with mashing / yeasting let me know, with a good mash you will be able to get five proof gallons per bushel ( proof gallon = 1gal @ 100 proof) remember the proof is twice the percentage of alcohol. (100 proof = 50% alcohol)
 
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Indiana George
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PostPosted: Wed Oct 31, 2012 4:14 pm    Post subject: Re: Welding copper to be drinking safe Reply to specific post Reply with quote

Is legal to make moonshine?I know it"s legal to make wine , but I don"t know about moonshine.
 
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