Bleach on micro fiber towels?
 

Does anyone know why they say not to use bleach on micro fiber towels....they go thru the wash and rinse cycle so no beach should be left on them.

Bleach tends to weaken fibers over time, microfibers would be IMO harmed by the bleach. I can't really think of any reasons to use bleach with or on one myself...

No need for bleach. Use warm water and a little vinegar.