Sorry to post again about this - I realized my last message was unclear and
I would like to refine it.  What I was trying to say was that some of the
many textiles I have worked on over the years must have been cleaned with
bread sometime in the past.  I have never observed any damage that appears
to be attributable to this treatment.  I offered this observation because
there haven't been any controlled tests of the technique that I know of, and
it seemed pertinent.  I am not expressing an opinion on cleaning of textiles
with bread.

Deborah Bede