Old Aluminium Milk Churns - 10G Ghetto Brewery

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dean_wales
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Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Fri Jun 22, 2012 12:06 pm

So I went to the scrappies and came back £30 worse off with a boot that looks like this...

Image

Three heavy duty 10 gallon aluminium milk churns, two of which have lids. In better nick than the photo makes out, although the front one does have that band of rusty stainless around the base. Insides are, as you would expect, quite tidy.

The guys at the scrap heap were very nice. They gave us some yellow jackets and let us wander around the mounds of stainless, copper and aluminium and look for something suitable. There was a couple of heavy stainless bowl like vessels but they would have been expensive due to the weight and the shape wasnt ideal, also no lids. Everything else was either too mangled, not food safe, too small or too big. Mostly stuff was mangled!

I couldnt justify the cash to buy the French stock pots - so its DIY and botching for us, unless I decide to resell them on eBay if they are really unsuitable. Took inspiration from Kev's old hot water tank build.

So... After my impulse buying my inital practical/build thoughts on them are:
  • PROS
    They were darn cheap compared to stockpots!
    I like a challenge.
    The smaller diameter (35cm) is great as they will comfortably fit on the 40cm worksuface I have just fitted in the shed.
    They seem to be really strong and fingers crossed there should be no leaks (versus DIY welding)
    All three vessels are the same, which is better than random scrap purchases.
    They are ready made so build time is shortened.
    They have near perfectly flat bottoms - great for bottom draining and false bottoms etc.
    Aluminium is easier to cut and drill etc than stainless
    They make me laugh!
  • CONS
    Aluminium not stainless i.e. not as shiny (yet)
    I have researched the health side of Aluminium and am happy to use them. I have other aluminium pots I use for other things.
    They are quite dirty and a little corroded. Nothing I dont think a day with a pressure washer and wire brush attatchment cant fix.
    They are smaller than I would have liked at 10 gallons/45 litres (this is excluding the neck, so it might be able to push capacity a bit further).
    If I ditch my Burco boiler and use one as a kettle my immersion cooler will need to be redesigned as it wont fit.
    As a mash tun they will be a little on the tall and thin side so hopefully wont cause stuck mashes. Personally I think is as likely to be a good thing as a bad.
Fittings and pipework will be copper and brass not stainless, continuing the ghetto theme. Some of which I already have, along with 1/2 tubing, solar pump and three copper thermowells.

I may ditch my value kettle elements though and buy something purpose made as I have never been keen on their nakedness or water-tightness.

Suggestions, thoughts and mockery welcome!

Dean.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

darkonnis

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by darkonnis » Fri Jun 22, 2012 1:28 pm

Looks good! Saved yourself quite a few quid there. May be worth looking at some kind of external chilling system. Like pushing your coil through a hose pipe, then running water through the hose while the beer flows through your copper pipe straight into the FV. May give better cooling than a very narrow coil chiller.

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by purpleyeti » Fri Jun 22, 2012 3:14 pm

or just a plate chiller, although that might undermine the getto setup a bit.
trying to to find the time space and money to jump up to AG

darkonnis

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by darkonnis » Fri Jun 22, 2012 4:51 pm

Yeah i had wanted to suggest that, seeing as he'd saved a fortune on the pans but, if its a money saving operation at hand you don't save money just to spend it elsewhere.... :(

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by themadhippy » Fri Jun 22, 2012 5:15 pm

how about this chiller,fits in with the theme nicley
http://www.ebay.co.uk/itm/Lister-milk-c ... 1c283e5436
Warning: The Dutch Coffeeshops products may contain drugs. Drinks containing caffeine should be used with care and moderation

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dean_wales
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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Fri Jun 22, 2012 6:52 pm

I am reassured by people thinking about chillers and not what a daft idea it is!

No plate chiller Im afraid. I am thinking about either "tightening" the immersion coil so that it would fit into a churn or alternatively I suppose I could wrap the coil tightly around the outside of the churn as aluminium is a good heat conductor. Would probably be slow to cool though!

I could keep the exisiting boiler and chiller but that would be cheating. Evaporation losses from a churn copper would be less (especially on smaller batches) as its narrower.

Bit worried about HLT capacity. I really wanted to avoid refilling the HLT mid brewday to simplify things.

Really wish that they were 15 gallons plus in size!

Dean.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by JonoT » Fri Jun 22, 2012 8:17 pm

Like the idea. I am wanting a larger HLT so might explore this as an option I've got 3 days off next week so might for an outing!

You could always make a counter flow chiller by putting your (I am guessing 8 or 10mm) micro bore copper inside a length of hose pipe and pass the wart though the copper and cold water through the hose. There are a lot of posts of people making them here's one of them http://jimsbeerkit.co.uk/forum/viewtopi ... 8&start=15

darkonnis

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by darkonnis » Fri Jun 22, 2012 10:04 pm

I wouldn't bother with copper tubing round the outside, It would just take so long and use so much water it wouldn't be effective in time or cost. Your HLT should be big enough, i mean, i don't know what you had planned? but if its the same size as the boiler, you shouldn't need to reboil it. You might have to do an internal coil or as previously mentioned a hose pipe type affair.

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Fri Jun 22, 2012 10:23 pm

I would like to do batches where I have ten gallons in my two fermenters at the end of the brewday. That way both me and my mate have five gallons each to keep.

Just ran some maths through BeerSmith for a 10 Gallon batch of SNPA.

Total water required 72L
Mash water 27L
Sparge water 45L
Boil volume 60L
Batch size 45L

Mash volume 32L @ 2.5 l/K

So the HLT would be OK as long as I refil (to the brim) after adding the strike water to the tun.
The tun should be fine and could probably acccomodate a mashout, which I would like, if I could work it with the HLT.

The problem is the boil. I need a 70L boiler really to have room for boiloff, safety and losses to hops etc.

Hmmmm. Do they do 15 gallon milk churns or will I have to depart from the dairy theme for that bit?!!

The other option is to deliberately calculate and brew a stronger batch that I can fit in the kettle and liquor it back at the fermenter stage.

Dean.

PS - Just checked them all over internally and they are all one piece so no danger of any leaks etc.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

Martin G

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by Martin G » Sat Jun 23, 2012 8:37 am

Was it you that had a welder mate?

Something I have wondered about is making a removeable but snug fitting extension to the top of the boiler. It would mean you can fill to nearer the top without it bubbling over, or so I think!

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Sat Jun 23, 2012 10:26 am

Yer he can weld, not sure if he can weld aluminium or not though.

I would be worried about leaks with that plan - a lot of electrics about!

Dean.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Sat Jun 23, 2012 10:34 am

Working this weekend so some serious MS Office time wasting was required this morning!

Leaving the concerns about kettle volume aside I thought I would draw a plan as this helps me visualise. Already flagged up one major issue - the false bottom wont fit through the neck of that churn as will be full width. So it either needs to be a clever fold in half one or I will need to cut the neck off that churn, which would be a shame.

Plan A as follows. What have I missed so far? You will have to guess components as I can be bothered to label them at the moment (the components list is quite long although I have some of them to take off the old plastic 5 gallon setup!

Image

Dean.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

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Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by dean_wales » Mon Jul 09, 2012 1:34 pm

A friend has just donated some 50 litre stainless vessels to this project and so these churns are now on eBay.

Looks like they might actually turn a profit and help with cost of fittings etc for the main build!

In some ways its a shame as I was looking forward to using them and they would have made me smile everytime.

Ah well, best to put practicality first.

Dean.
Click here for my cider pressing...
Click here to see my 20% Damson port experiment...
Click here for red wine from my allotment vine...

Highlander

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by Highlander » Mon Jul 09, 2012 2:50 pm

You'll need a new name, Nothing ghetto about stainless.

Was lookign forward to see how this build came along, it would have stood out from the crowd.

darkonnis

Re: Old Aluminium Milk Churns - 10G Ghetto Brewery

Post by darkonnis » Mon Jul 09, 2012 7:01 pm

Aye it would have looked pretty spectacular. Being honest dean, keep the aluminium churns and make it into a lovely bespoken set and sell it as a one piece
http://www.ebay.co.uk/itm/MICROBREWERY- ... 500wt_1413
Not saying you'd get 2 and a bit grand for it but there is no reason yours couldnt look as spectacular as that does, would be nice for a real enthusiast or pub looking to do 1 cask runs as specials.
If it where me I'd do it just for how it looks but hey ho, and highlander is right, there is nothign ghetto about stainless :D

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