Prof.Weinberg's statement "careful that the water is not too hot as it 
will start a chemical reaction in the ebonite (hard rubber) which will 
render the mouthpiece carcinogenic." has me a bit worried. I have seen 
many rubber mouthpieces that are brand new turn green just sitting in 
the display case. These have never been washed in hot water; some have 
never been washed at all. Are they carcinogenic ? What is the best way 
to deal with the "green sheen" ? I definitely don't want to knowingly 
introduce carcinogens to my customers' oral cavities.

-- 
Jeff MacFronton
High Note Music and Instrument Repair
201A-4690 Marine Ave
Powell River, BC V8A2L1
hinotemusic@...
604-485-2225

sometime ago yanagisawa started to pack their ebonite mouthpieces in polythene : as they could not breath and started to 'sweat' they turned green and smelt terrible. they soon stopped this. A glass case can
 have the same effect. this smell and taste--which is bitter--are the signs of carcinogenic properties and is dangerous.
the results --as documented in the Lancet medical journal many years ago are various throat and mouth cancers--although they do take time to appear as in all cancer.
prof weinberg

--- On Tue, 11/8/09, High Note Music <hinotemusic@...> wrote:


From: High Note Music <hinotemusic@...>
Subject: [MouthpieceWork] Re: mouthpiece hygiene
To: MouthpieceWork@yahoogroups.com
Date: Tuesday, 11 August, 2009, 6:20 PM


  



Prof.Weinberg' s statement "careful that the water is not too hot as it 
will start a chemical reaction in the ebonite (hard rubber) which will 
render the mouthpiece carcinogenic. " has me a bit worried. I have seen 
many rubber mouthpieces that are brand new turn green just sitting in 
the display case. These have never been washed in hot water; some have 
never been washed at all. Are they carcinogenic ? What is the best way 
to deal with the "green sheen" ? I definitely don't want to knowingly 
introduce carcinogens to my customers' oral cavities.

-- 
Jeff MacFronton
High Note Music and Instrument Repair
201A-4690 Marine Ave
Powell River, BC V8A2L1
hinotemusic@ uniserve. com
604-485-2225