## Step 4: Winding the condenser coil

ok, so we need to make a condenser coil, now the original Boka still was a single coil, since then other distillers have found a double coil to be more effective.

a double coil is a smaller coil inside a larger coil.

ok so I had to work out how I would make the coil so that it would fit, i knew the diameter of the pipe I was using to make the coil, 6mm, and the internal diameter of the column, 50mm. the coil should be made in such a way that it fits inside the column but without touching the sides. I planned to wrap the outer coil around a pipe of 32mm copper pipe that and 6mm copper pipe x 2 = 42mm perfect.

the inner coil would then have to fit inside the PVC pipe with room to spare, the inner diameter of the PVC pipe is 30mm, so a piece of 15mm copper pipe fitted the bill, 15mm plus 6mm x 2 for the copper pipe = 27mm also perfect.

we start off by making the smaller coil, the inner coil, to do this we have to wrap the 6mm copper tube around a form, e.g. a 15mm copper pipe in my case. be careful when starting it off you need to leave enough to go out the top about 5 inches long. also when starting off take it slow, you don't want to kink the pipe, I did a little but it hasn't restricted the flow too much, if I find later it has I will have to make a new coil. when winding your coil make sure you leave a gap between turns, we want to allow the vapour to get between so it can cool on the coil.

Coil length, 8 inches in my case which is what everyone seems to say is best for this type of still, you can make it to 5 inches if you're making a smaller column but if you can make it 8 inches or more.

once the inner coil is to the length you want slide your PVC pipe over and start winding the outer coil around it when you get to the end leave 5 inch's and cut it, bend it so both ends of the coil are facing upwards using a bending spring you don't want to put a kink in it now.

you should be able to slide the copper tube out easily, the PVC pipe you may have to pull out with pliers.

check out this forum post on winding the perfect coil, click here
<p>Does the curled part of immersion heater element come up or down?</p>
<p>doesn't matter, as long as its not making contact with the side/bottom</p>
Great build good instructions will be using propane burner for heating instead of electric .I will be using it in West Africa runs great got 181 proof out of it with some practice
<p>awesome, you can get really high yields from it if its run correctly, most you will likely be able to get is 96% so around 192 proof</p>
I would like to build something bigger now I have 4 if this model and 4 two inch pot still type a 3or4 in column would be interesting to do
<p>Does the steam escape through the ventilation hole?</p>
no, it condenses before it gets that far as long as the water is running through the coil, its just a precaution to prevent pressure build up<br>
<p>Is that valve actually a needle valve or is it just a bog-standard ball valve / isolation valve?</p><p>Also is it fine to use plated brass at this stage? I'm assuming the answer is yes but best to check. Most resources seem to say only 304 Stainless and copper to come in to contact with the product?</p>
<p>its a needle valve, you have much more control with a needle valve than a ball valve.</p><p>stick to solid brass, brass is ok as long as its lead free brass. i wouldn't use plated brass, you dont know what materials were used in the plating process or the underlying material. use brass or stainless steel, if you can find a needle valve in copper then use that.</p>
<p>I only ask because I cannot find anywhere a needle valve like that. It looks like one of these- which is a readily available ball valve?</p><p><a href="http://www.ebay.co.uk/itm/B15-01223-Mini-Ball-Valve-Compression-Ends-6mm-Tube-O-D-Mini-Ball-Valve-Brass-/361219728277?hash=item541a5fa395:g:CTYAAOSwe-FU5Il~" rel="nofollow">http://www.ebay.co.uk/itm/B15-01223-Mini-Ball-Valv...</a></p><p>I would expect a needle valve to have a knob as it would be several turns to close? I've never seen a ball valve with a lever like that one.</p><p><a href="http://www.ebay.co.uk/itm/1-8-1-4-BSP-6-8-10-12mm-I-D-Brass-Plug-Needle-Valve-Multiple-/281900689348?var=&hash=item41a29727c4:m:mXH0WugP82FgSFacZW8Dtsw" rel="nofollow">http://www.ebay.co.uk/itm/1-8-1-4-BSP-6-8-10-12mm-...</a></p><p>Is the one you're using a 180 degree close or several turns? If it is several turns where did you get it and how much did you pay? The only stainless and un-plated brass ones I can find are quite pricey.</p><p>I mean it doesn't matter I just want to try and replicate what you have as closely as possible as it obviously works and will be easier to troubleshoot if anything goes wrong.</p>
<p>Great. I feel a bit stupid for not thinking of that.</p><p>I managed to get a Bookers card and I've found that seems to be the cheapest place to get molasses.</p><p>7.257kg for &pound;12.75. </p><p>If I were to use half that container and make the extra 400g up with white sugar or cane sugar do you think that would be okay? It would just mean I could get two runs from one carton.</p>
I buy my molasses from ebay i get the gold label one, they use it as horse feed but its just plain molasses with no additives so its fine to use as it will be distilled and not consumed directly.<br><br>http://www.ebay.co.uk/itm/MOLASSES-GOLD-LABEL-5LT-Horse-Feed-Supplement-/281629846583<br><br>I normally get about 4 runs out of it. the stuff you are looking at is really really thick stuff and expensive. the Rum flavour comes from the Molasses, the alcohol content comes from the sugar you add and whats in the molasses. you probably could make up the shortfall with sugar not sure how much difference to the flavour that would make though.
<p>Understood. Ordered now.</p><p>I'll let you know how it goes. If it goes well I'll upgrade to reflux column and try vodka.</p>
<p>its cheaper than food grade molasses and its fine for distilling.</p>
you can use other brands but check they are just molasses and they don't have additives in them.
<p>yes that one is just molasses as far as I can tell (see image), but I'll go with the gold label purely because I dont know the mass/l of molasses. If you get around 4 runs from one batch then i guess 5l must be around 16kg and therefore the tate and lyle treacle must be &lt;5l.</p>
<p>Hi</p><p>Firstly- great instructable. There are some excellent solutions to probelms I might not have anticipated.</p><p>Do you have any problem with limescale build up on the heating element?</p>
I've not noticed it before but then I clean my still regularly with vinegar solution so that should take care of that before it forms.<br><br>that being said, the element is in a screw in flange so it could easily be removed and cleaned.
<p>Great Instructable...I have been slowly gathering the parts. I am having trouble getting the SS2.25 flange nut, can anyone give me any pointers?</p><p>thanks</p>
think i got mine on ebay, but thats for a UK heating element, other country's may have a different size
<p>hi.</p><p>Great site by the way. </p><p>I too am in the UK and want to go down the immersion element route. You mention phase angle controller/ voltage regulator with triac. That Chinese one you bought, is the triac built in etc? All I see from the pics is a direct setup, whereas others I've seen full schematic drawings.</p><p>Thanks </p>
yes its all built in
<p>hi.</p><p>Great site by the way. </p><p>I too am in the UK and want to go down the immersion element route. You mention phase angle controller/ voltage regulator with triac. That Chinese one you bought, is the triac built in etc? All I see from the pics is a direct setup, whereas others I've seen full schematic drawings.</p><p>Thanks </p>
<p>Must be nice to be in New Zealand, you Kiwis have it good. In the USA, most of this is a felony (home stills). <br><br>UNLESS you get yourself an ATF License as a liquor manufacturer.</p>
I'm not in New Zealand, I'm in the UK
<p>Well, mate, I couldn't tell by your accent, but you mentioned NZ first, then the UK, so you fooled me...<br><br>&quot;I know in New Zealand you can make your own booze and in the UK you can have a still that makes up to 5L if you have a permit.&quot;:</p>
<p>&quot;in the UK you can have a still that makes up to 5L if you have a permit.&quot;:</p><p>Well that is a way oversimplification. See the second post in this link:-</p><p><a href="http://ww.homedistiller.org/forum/viewtopic.php?f=49&t=29369" rel="nofollow">http://ww.homedistiller.org/forum/viewtopic.php?f=...</a></p>
<p>in the UK you have to declare your still to HMRC and you also have to log everything you put in it and everything that comes out of it. and if you want to sell it you have to pay the taxes on it.<br><br>There is a fair number of hoops you have to jump through to be able to distill up to 5L in the UK. </p>
<p>Great Instructable too by the way <a href="https://www.instructables.com/member/n1cod3mus">n1cod3mus </a>, your instructions are quite well done, and I'm sure those that are allowed will enjoy the final product.</p>
<p>Oh yes,&quot;land of the free&quot;', LMAO.</p>
<p>Yeah, we CAN brew beer, make wine, but distillation is a no-no. When I was a kid back when dinosaurs roamed the earth, one summer my Dad had chosen just a little too warm a storage area, and was doing some experiental fermentation technique (in capped bottles) - it was definitely a real error on his part. (This was back when permits were required, and we had one.) They've relaxed on beer &amp; wine a good bit since.)<br><br>The capped bottles started exploding in the hot South Carolina evening, prompting the neighbors to call the County Police about what they thought was gunshots! The police were relieved it was nothing more than a spoiled batch of beer. And a nasty yeasty smelly mess to clean up, glass everywhere, some stuck in the ceiling. Guess who got to clean up after the police left... And I wasn't even old enough to drink the finished product.</p>
<p>I am in New Zealand, and its not nice, its &quot;bloody awsum mate&quot; as we would say. We have many many rules, laws and regulations that permit this and many other things, we are truly for the people by the people, not just words on paper but truly in practice. Police don't carry guns! We can grow our own tobacco too, brew anything we want, but for our own consumption only, and on our own property, and in maximum quantities that no one can consume in a year! One thing we are very proud of too, as a side, is that we have government legislation that makes us totally nuclear free, free of anything nuclear, no power, no bombs, and was the 1st and only country to do so. It is a thorn in USA's side as we will not permit nuke powered vessels into our waters, so no war games with USA... One problem we do have here is getting hold of an old keg, as the are all owned by the brewing companies...</p>
you should be able to buy a new one, here in the UK most kegs are owned by the brewerys but you can buy new ones which is what I have done and you can also buy full ones from the cash and carry, you have to empty them though... shame lol I got a cash and carry one from a local social club who bought one when they ran out of stock but then they were stuck with the empty. gave em &pound;10 for it and cut the top off and its now my mash tun ;-)
Hey man major question, I just finished my condenser. I used 13' of 1/2&quot; tubing. Now after all of that I wanted to text it so I ran some water through it. My water is getting stuck somewhere in it. It's about as even as I can get it and idk if this is a problem. It takes about a half a water bottle before and water will start to come out and to get the rest of it out I have to physically blow through the tubeing. Will this affect my distilling? I'm worried about shine getting stuck in there and making it gurgle.
well you will have pressurised water running through it so I would test it using mains water not a water bottle. you may have a slight kink in your pipe
Also great Instructable man! I can't def see all the time and work you but into to it. I did t just throw a pot sti together ha. Iv takein my time and have put a lot of work Into mine. I'm using a 2gal pot with a hot plate. And def a lager condensed in need. But that can't be detrimental as long as it's working right lol. I chose to go a small pot because I just don't have the momey to spend now on a keg and all that jazz. But I figured I'd get some practice on the basics even though I could of just waited and have no doubt that I coulda made something like this. I'm going to be using a thumper too but that's more for adding flavor than double distilling.
<p>A larger still makes the cuts easier to be honest ;-)</p>
<p>A larger still makes the cuts easier to be honest ;-)</p>
<p>if your condenser is too small it wont condense all the vapour which could lead to a leak of vapour and possibly a still explosion. also you lose valuable alcohol. and if it doesnt leak it will take much longer.</p>
You mentioned vents at the top of the column between the inlet and outlet ports of the coil..Would this also allow room for valuable vapour to escape? Or will the falling liquid not allow vapour to get this high?
<p>The vapour cools way before it gets that high.</p>
Than**
I meant definitely a larger condenser that I need haha
How did you manage to &quot;legally&quot; get the keg? I am having trouble getting hold of one. Thanks
<p>try having a look at </p><p><a href="http://siba.co.uk/classifieds/browse-categories/?category_id=5/for-sale/" rel="nofollow">http://siba.co.uk/classifieds/browse-categories/?c...</a></p><p>for a keg all legal 4.5 g to 18g and one of the keg sellers may even be close to you this is where im buying my stainless steel keg for huhumm a smoker to smoke fish .... honest :) some are even as cheap as &pound;25 a keg </p>
<p>try having a look at </p><p><a href="http://siba.co.uk/classifieds/browse-categories/?category_id=5/for-sale/" rel="nofollow">http://siba.co.uk/classifieds/browse-categories/?c...</a></p><p>for a keg all legal 4.5 g to 18g and one of the keg sellers may even be close to you this is where im buying my stainless steel keg for huhumm a smoker to smoke fish .... honest :) some are even as cheap as &pound;25 a keg </p>
<p>Any chance you can post the pictures of the new medication? Hows your booze tastin'?</p>
<p>Hey, I used most of your design and instruction to build a version of this with an offset head. Anyway, I am having trouble understanding how the voltage controller works with my heating element. I see one on amazon that looks like it could be the same as yours: </p><p><strong><a href="http://tinyurl.com/oopep5c" rel="nofollow">http://tinyurl.com/oopep5c</a></strong></p><p><strong>Will that work?</strong><br><br>Question #2: Could it also be possible to use a temperature controller instead? So the temperature controller would turn your element on and off to make sure it stays in that temperature zone needed, example here: </p><p><strong><a href="http://tinyurl.com/ndx9w8c" rel="nofollow">http://tinyurl.com/ndx9w8c</a><br><br>Thanks for all of your help and instructions. I wouldn't have been able to figure out all the connectors and flange sizes on the first try without this instructable!!<br></strong></p><p></p>
<p>ok first question, yes that looks like it would do the trick.</p><p>2nd question, the problem with temperature controllers is they turn off the element until the temp drops below a threshold so you would have irregular flow and find it very hard to control the unit.<br><br>KIS - Keep It Simple ;-)<br><br>You will have to upload some pics of your still</p>