Stainless oxide in still?

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Bottles
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Posts: 21
Joined: Thu Jan 02, 2020 4:10 pm

Stainless oxide in still?

Post by Bottles »

Hi all.
During lockdown 1.0 to find something to do I started planning a 2" ccvm. Using a 40lt hlt . this meant either putting a big hole in the middle of the lid or buying a stainless bowl. Then all the shops shut. To get out from under my other half feet I had the not so bright idea of using some off cuts of stainless used in a splash back. I've dished it, put a flange and a divute rim with upturned flange, using quite a bit of heat from oxy/act.
As I'm looking to finish up this bitcjh of a project. I realise the stainless was approx 0.8mm thick. So I'm trying to polish up without removing much metal. I'm not sure if I can remove all of the oxide from the heat used.
If I finish up the lid but not remove all of the oxide. Will it impart on product coming from the still?
Andrew
Bottles
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Posts: 21
Joined: Thu Jan 02, 2020 4:10 pm

Re: Stainless oxide in still?

Post by Bottles »

Just bumping this in case everyone missed it?
Andrew
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zed255
Distiller
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Joined: Thu Jan 05, 2017 7:06 pm
Location: Ontario, Canada

Re: Stainless oxide in still?

Post by zed255 »

You likely over cooked your stainless. Applying too much heat burns off the chromium and nickel that make stainless, well, stain less. Some discolouration might be permanent but not an issue. Buff it up, try passivating with some citric or acetic acid and see what happens. If it rusts I'd say it's done and try again, otherwise carry on.
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Zed

When the Student is ready, the Master will appear.
If you can't explain it simply, you don't understand it well enough.
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