Palembang Keris

A. G. Maisey · 7th February 2026, 03:16 AM

Maybe "vinegar essence" is what in Australia is named as acetic acid.

Household vinegar is only about 5% or so acid, it costs me about AUD1.25 per liter. With changes of vinegar along the way, over a week or so, I would use maybe 2 liters of vinegar to clean a fairly heavy incrustation of rust from a blade.

Acetic acid comes in various strengths, all the way through to about 80% acid.

I have no idea at all where I could buy acetic acid. We used to use it to burn warts off --- dab a bit on the wart with the end of a match stick, & that was bought from a pharmacist.

7th February 2026, 03:16 AM	#14
A. G. Maisey Member Join Date: May 2006 Posts: 7,164	Maybe "vinegar essence" is what in Australia is named as acetic acid. Household vinegar is only about 5% or so acid, it costs me about AUD1.25 per liter. With changes of vinegar along the way, over a week or so, I would use maybe 2 liters of vinegar to clean a fairly heavy incrustation of rust from a blade. Acetic acid comes in various strengths, all the way through to about 80% acid. I have no idea at all where I could buy acetic acid. We used to use it to burn warts off --- dab a bit on the wart with the end of a match stick, & that was bought from a pharmacist.