Sulphur taste

[bluc]

Did a kale wash it stalled at 1.030. Wash has lots sulphur smell, backset stinks of fart.

Question if it's just sulphur can it carry over into spirit? Tails also tastes of fart :puke-huge: or is it rotton and should be dumped?

Never encounter this and wondering if it's normal for a sugar wash?

[Arismac]

I have been looking hard at some of the chemistry behind this. I suggest that the yeast "food" Kale or Tomato, is only relevant because of relatively high levels of Vitamin A which yeast needs. But the yeast consumes "food" in order to carry out some hard work in turning sugar into alcohol. This results, if you can imagine, the yeast "sweating" sulphur plus complex variations. That is what we need to get rid of because to most animals, especially us, sulphur tastes bloody awful.

So we bring the sulphur into contact with copper. Some of the sulphur becomes copper-sulphate and we can deal with that by washing it off the copper. In theory we could keep on re-stilling until all the sulphur has been captured by the copper. In practice we simple reduce the sulphur to a level where it no longer interferes with our enjoyment of our tipple.

So feed your yeast whatever it likes, just as long as you keep it well fed. Tomato Paste is cheap, Kale more expensive but I don't think it will make a jot of difference which one you use as long as you employ a good spirit yeast.

[bluc]

Ok hearts was fine but the tails from it is some mighty nasty stuff..first time I have ever noticed sulphur in anything...

[RC Al]

How many runs have you put through the scoria?
Maybe be worthwhile to give it a boil anyways?
Drop all of it in citric for the fun of it?
Did you taste the wash before running?
What was the ph of the wash - might have made a different acid to normal and it cleaned up on the way through?
How much does the scoria move around, dose it make much noise? Might be abraiding the inside of the column..

[bluc]

Nah not much noise from scoria, didnt taste it cause its smells like fart. No obvious signs of infection(other than the fact it stalled and stinks of fart) only done one spirit run with the scoria, I dont strip with ot on 10l of low wines at 90% watered back to 30..

[shortcut]

Hey mate, I think you forgot to mention what it smells like. :D

[tipsy]

In beer brewing some yeast are notorious for producing sulfur, mainly lager yeasts.
The smell dissipates after a bit of time.

[Sam.]

The fact that your wash has stalled means there are not enough nutrients and it will start making hydrogen sulfide.

The kale wash thread has enough other nutrients in it for the yeast to work, the kale is there to make you feel better.

Did you add the extras and use fresh yeast, aerate etc?

[bluc]

Yes followed to the tee and upscaled by 4....
Edit sorry upscaled by 8

[bluc]

Question is it it safe to consume or should it be dumped?

[bluc]

Hang on are we talking about same kale wash. There is no other stuff http://aussiedistiller.com.au/viewtopic.php?f=25&t=9481

[RC Al]

Did you make it with RO water? Maybe some magnesium and other stuff missing?

Fresh or frozen kale? If fresh, did you wash it first?, could be any chemical on there from production to the supply chain

[bluc]

was frozen rc. i used uvaferm 43 which is supposed to be the cats meow for a clen ferment. maybe that is the issue...

[The Stig]

Yer, you don’t really want cats in ya ferment :laughing-rolling:

[Sam.]

Hang on are we talking about same kale wash. There is no other stuff http://aussiedistiller.com.au/viewtopic.php?f=25&t=9481

Ah I was thinking of Teddy’s recipe, my bad.

Yeah well that just proves kale is a shit nutrient. :-B

[bluc]

Yea has me stumped lots seem to use it :think:

[Sam.]

Think you will find they add DAP

[bluc]

I can't find any mention of anything besides kale used :laughing-rolling: anyway this is my second big batch kale fail and last....

[RC Al]

So has the RO water fixed your other fermenting issues, you had a heap of probs a few moths back? or was it something else?

[bluc]

This is third have not switched yet. Put down a uj week ago dry in 3days.
One uj stalled one uj didn't start then kale stalled. Oh well everything brewing is gunna undergo germ Armageddon...
Thinking it may be bacteria related..