I have a friend who owns a horse that slobbers all over the place, he always seems to grab a quick snack during a trail ride or find some waay to make his bit taste better, which obviously leaves it looking messy & just plain gross. When I asked her how she got the bit clean after every ride she told me that she would take the bit home & stick it in her dishwasher, & the bit would come out sparklingly clean! I tried this on an old crusty bit I had & I was amazed at the difference! You should definetly try it.
Good advice!! However, I thought that a horse's bit should always be cleaned right after every ride - when the slobber is fresh, it's easy to just rinse it off under running water... Of course, the occasional wash in the dishwasher is still a good idea, and it sure works wonders on spurs and stirrups, anyway.
I dunk the bit in the water bucket immediately after taking the bridle off to get most of the gunk off. You can also drop the bit in the denture cleaner (the fizzy tablets you drop in water). Steel wool will get any rust off.