boiler backset

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boiler backset

Postby baznkez » Wed Oct 25, 2017 11:47 pm

Hi ,
I have just run a turbo yeast , the left over backset in boiler is a yellow slight brownish colour ???? , this happened once before it was black , i put it down to i had to braise some copper where outlet pipe had a tiny weep, i cleaned boiler condensor etc with citric acid on the copper and vinegar on the stainless saddles etc any ideas would be appreciated is it safe to drink or no ?

Baz :cry:
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Re: boiler backset

Postby still_stirrin » Thu Oct 26, 2017 5:20 am

You want to drink backset? It doesn’t sound tasty to me.
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Re: boiler backset

Postby nuntius01 » Thu Oct 26, 2017 6:10 am

still_stirrin wrote:You want to drink backset? It doesn’t sound tasty to me.
ss

never tried to drink my backset. maybe i should start. :D no, it should be ok.
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Re: boiler backset

Postby acfixer69 » Thu Oct 26, 2017 7:05 am

The backset is very acidic and full of the things we are distilling to remove from our product. Why would you drink it. Cleans up dirty copper well so can't be good on body inners.

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Re: boiler backset

Postby baznkez » Thu Oct 26, 2017 11:30 am

LOL NO NO NO

OK maybe i need to rephrase this , a few weeks back i braised the outlet pipe on my condensor, i did a sacrificial run ,the boiler backset was black as like a molasses rum !!!! , i have just finished another still run the backset is a yellow/ browinsh colour ??? will the spirit be affected will the SPIRIT !!!!!! be safe to drink or is the column still dirty from braising on the inside have never seen dirty boiler backset until i have braised !!!! worried about final product not sure how to test it to make sure its safe to consume!

Baz
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Re: boiler backset

Postby still_stirrin » Thu Oct 26, 2017 1:26 pm

baznkez wrote:LOL NO NO NO

OK maybe i need to rephrase this , a few weeks back i braised the outlet pipe on my condensor, i did a sacrificial run ,the boiler backset was black as like a molasses rum !!!! , i have just finished another still run the backset is a yellow/ browinsh colour ??? will the spirit be affected will the SPIRIT !!!!!! be safe to drink or is the column still dirty from braising on the inside have never seen dirty boiler backset until i have braised !!!! worried about final product not sure how to test it to make sure its safe to consume!

Baz

If you're worried....do a complete cleaning cycle...steam, 50/50 vinegar/water, and a final sacrificial alcohol run. No sense in worrying....
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Re: boiler backset

Postby baznkez » Thu Oct 26, 2017 3:27 pm

22835307_1531044590267263_96187537_n.jpg
22834467_1531044506933938_487305409_n.jpg
Yeah still maybe i might just do that , better to be safe then sorry , this is what it looks like , & in the boiler their is a film of i do not know what
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Re: boiler backset

Postby NZChris » Thu Oct 26, 2017 5:19 pm

As long as you have done both vinegar and alcohol cleaning runs the distillate should be fine to drink. The crap is in the boiler where it should be after a run.
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Re: boiler backset

Postby jb-texshine » Thu Oct 26, 2017 5:28 pm

What is that nut made of?
Have you had the same experience without the fittings and such in the bottom?
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Re: boiler backset

Postby baznkez » Thu Oct 26, 2017 11:10 pm

HI , the nut is looks like chrome plated and the saddles in the boiler are stainless and copper , today i did another cleaning run both vinegar and a cheap wine for a spirit run the left overs in boiler look like a tea colour without the milk LOL !!! its starting to annoy me i got no clue what it is
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Re: boiler backset

Postby baznkez » Fri Oct 27, 2017 2:41 am

resty.jpg
rust.jpg
hi jb-texshine

Pulled to saddles out column it got the better of me , found a rust residue inside column ? no idea y
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Re: boiler backset

Postby NZChris » Fri Oct 27, 2017 3:11 am

Rust, or stinky fusels?
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Re: boiler backset

Postby baznkez » Fri Oct 27, 2017 3:17 am

no smell its rust but where from does solder or flux cause rust?
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Re: boiler backset

Postby still_stirrin » Fri Oct 27, 2017 7:16 pm

What are the pieces in your boiler? I see copper, but what about the other pieces? You may think they're stainless steel, but if they're rusting, they most probably are not stainless. But they definitely look like they're rusting. And I would NOT drink the distillate that comes off of the still, especially if it's that colored stuff that's in the measuring cup.

And speaking of that measuring cup....it isn't glass, is it? If not...don't collect high proof alcohol in it.

Going on...your column has a plastic insert on top too, doesn't it? Is the plastic exposed to hot alcohol vapors? If so, you need to change it. Again, plastics and rubbers are definitely a "no no" if exposed to high proof alcohols. They'll leach into your spirit and ruin it for you.

But the yellow/amber distillate looks like rust to me. Find the source of the rust and eliminate it. Then, you'll see your distillate clear up.
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Re: boiler backset

Postby still_stirrin » Fri Oct 27, 2017 7:24 pm

baznkez wrote:no smell its rust but where from does solder or flux cause rust?

Solder flux is an acid. It will cause metals to corrode, especially if left in contact with the metal. The acid will cause oxidation and moisture can act as a catalyst as well. Heat also accelerates the corrosion process.

The solder doesn't "cause" corrosion, but if the metals are not compatible, that is, dielectrically opposed, the solder or the base metal may start to corrode. If you use the correct solder, then this type of corrosion shouldn't occur.

But, if you didn't properly clean the flux off of the metal/joints, residual flux could start some corrosion. So, you've got to thoroughly clean...especially before you start to collect drinkable spirits.
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Re: boiler backset

Postby Yummyrum » Fri Oct 27, 2017 9:10 pm

I'd be pulling all that boil saddle crap out first off . It's certainly not essential and an easy thing to elliminate .
IIRC way back when I did turbos the stillage was certainly a darker colour than the wash that went in ..... but what you are showing looks a whole lot worse .
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Re: boiler backset

Postby baznkez » Fri Oct 27, 2017 11:04 pm

111111111.jpg
Hi ,

Cheers guys i found the cause of the problem , i pullet the column totally down and took cooling coil out & condensor etc , what i did find was the nut on the boiler lid that connects to the column is rusting , i put it down to poor chrome plating , so i am assuming on reflux it is dripping the crap back into the boiler , as the wife drinks the nuetrals & i do mollases rum with the alembic i really didnt pick up on it until today , so once again i have cleaned all the copper etc & refitted the coil back to the column so i shall wait a few days then re run a spirit clean then a wash to see how we go.
Once again i appreciate all the input

Cheers Baz
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Re: boiler backset

Postby jb-texshine » Sat Oct 28, 2017 1:44 am

Swap out all plated for stainless steel and your great I bet.
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