Silver and copper color goo

[Buster]

I found a substance that looked like copper never seize, just not as thick after a run just on the copper parts of the column anyone see this before?

[yakattack]

Ummm.. what? Picture maybe?

[Buster]

I have all ready cleaned it off, I did leave the cleaning till the morning as I finished up late. The back set was very acidic it was below 4.2 pH.

[markx]

It is most likely cuprous oxide Cu2O. As opposed to the black colored copper(II)oxide , the cuprous or copper(I)oxide is a fine red/orange colored powder that looks very much like the substance in copper antiseize spray. It can form on the copper parts in the still through reaction of the metal with oxygen from air or from preexisting copper(II)oxide under certain conditions....usually when a reductive agent is present (e.g. aldehyde content or sulfur dioxide from campden residue).

[Greggle2000]

Does it look like this?
I have the same stuff.

Thoughts?

[Slivovitz]

Look like this? I just had this in my pot!

[NZChris]

Probably a trick of the light playing on the fusel oils. Did you taste it?

[Deplorable]

Does it look like this?
I have the same stuff.

Thoughts?

I get something that looks like this in my column after a puke from an AG stripping run. I always break down and give everything a hot water rinse after a stripping run and that film runs out.

20210909_180914.jpg

Look like this? I just had this in my pot!

That looks like the fats or oils mixed with unfermentable starches that line the inside of my boiler after stripping runs On Barley runs, it's dark like that, on high corn runs, its more of a pasty yellow color.

[Slivovitz]

I buttered the bottom of the pot like always. This is actual off colored flotsam on top.

Smelled great like rich fruit reduction but I didnt taste it.

The blue Crystal that were left behind in my glass proofing parrot disturbs me.