Custom immersion chiller questions

Systems, Gear, & DIY
1

I just got a really cool custom immersion chiller and I had a few questions before I use it. There is black discoloration around where it is soldered, on 3 sides there is a copper wire soldered to the coils to provide support as it is pretty large.  I cleaned it several times with barkeepers and then boiled the whole thing for 15-20min, but did not make much progress on removing the discoloration.

  1. Do you see any issues with using this?  I am not concerned about sanitation, bc it would be boiled, more concerned about any potential off flavors / health issues?

  2. Should I soak it in star san to continue to try to clean it?

Just wanted to throw this out to see if I am inventing problems or not.  Would like to be able to use this as it works very well!

2

Try soaking it in vinegar (the distilled stuff you get at the grocery store).

How big is that, hard to to tell from the picture.

3

It is 20 inches high and about 10 inches in diameter.

4

1/2 inch tube?

5

Yes, 1/2 inch tubing

6

You could also soak it in PBW.