From: Steve Beccue 
To: Mark Holm 
cc: atm{at}shore.net
Reply-To: Steve Beccue 



There was nothing in the dishwasher except the mirror and jet-dry.   The
jet-dry was recomended to prevent water
spots.   Perhaps lingering residue??

Steve Beccue
steve{at}beccue.com

On Sat, 15 Mar 2003, Mark Holm wrote:

>
> >  So I popped a grungy
> > old 8" mirror in the dish washer and tried it; no hot water and no hot
> > dry.
> >
>
> I am curious, did you use dishwasher detergent?
>
> The dishwasher detergents I am used too seem to be fairly alkaline, a pretty
> sure fire way to get rid of aluminum.  I never wash my aluminum cookware in
the
> dishwasher for that reason, at least not the more expensive ones.  I have a
> rather expensive "hard anodized" aluminum pan whose
instructions said it
would
> stand up to most anything, but not to wash it in the dishwasher.  I also have
a
> cheap, and thick, aluminum ice cream scoop that has been through the
dishwasher
> many times.  It's surface is always dull and slightly pitted looking.  It was
> shinier when new.
>
> Also, I have several glass items that have etched from the dishwasher.  Even
a
> Pyrex measuring cup shows a little etching after many trips through the
dishwasher.
>
> Moral, a hot alkaline solution, even one as mildly alkaline as dishwasher
> detergent (based on sodium carbonate usually) is tough both on aluminum and
> glass.  I don't use alkaline solutions on my optics.
>
> Mark Holm
> mdholm{at}telerama.com
>
>
>
>
>

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