I also took Jason's advice and bought and used KaBoom. I considered it a big mistake because it left a terrible taste, even after extensive rinsing in water and alcohol. I use Dawn quite successfully sometimes following with an ultrasonic cleaner. If it is good enough for my skillets and crystals then it is good enough for my Hohners, Seydels, Suzukis and self-mades.
My new ultrasonic cleaner is a disappointment, even after several full cycles of use. Even using various cleaner additives to it. It does sterilize thoroughly.
I have polished the brass with buffers then treated with Liquid Glass successfully. Reeds do not like being buffed, believe me. LOL. Liquid Glass leaves a super thin coating so I don't notice it changing the pitch of my reeds after being wiped off. LG is available at automotive supplies stores.
I like using Brasso on extremely oxidized brass (including the reeds) but the European Brasso is much better than what is available in America.
Nothing that I know of will keep brass shiny forever but MAAS is on my shopping list. As is Fritz.
Lockjaw Larry
Breathing Music and cleaning fumes daily.
________________________________
From: Roger Beck <beckmeister1@xxxxxxxxxxx>
To: harp-l@xxxxxxxxxx
Sent: Thursday, November 8, 2012 9:08 PM
Subject: [Harp-L] Cleaning harmonicas
Watched a Jason Ricci video - cleaning 7 or 8 harmonicas a week using the technique he demonstrated. I was
immediately affected by his recommendations and decided - "I'm gonna do that too"! So I get my 91% alcohol and... my bottle of KaBoom, a toothbrush to scrub in the ol' KaBoom...
Lo and behold - the back of the bottle states "do not use on brass!" Oh Oh! - is KaBoom indeed OK for scrubbing reed plates with a toothbrush? If not - what is better?
A long-term, yet effective, cleaning technique that'll preserve my harps is my objective. Are there links that might offer alternatives for smart cleaning?
Any word is much appreciated. Roger