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From: kolling@decwrl.DEC.COM (Karen Kolling)
Newsgroups: net.cooks
Subject: Re: what's the salt for (copper)
Message-ID: <1127@decwrl.DEC.COM>
Date: Thu, 13-Feb-86 12:12:16 EST
Article-I.D.: decwrl.1127
Posted: Thu Feb 13 12:12:16 1986
Date-Received: Fri, 14-Feb-86 07:31:23 EST
Organization: Digital Equipment Corp., Palo Alto, CA
Lines: 9


> To clean your copper pans, try vinegar or lemon juice, plus salt.
> The salt gives a bit of a scouring action, without scratching off
> the copper.

More than that, I think.  Lemon juice alone is practically a no-op.
I find it hard to believe lemon juice + salt is creating dilute HCL,
since this stuff works on the copper but leaves hands intact, but it's
doing more than just scouring.