37+ Dishwasher Leaving Brown Residue. In theory, the film could be left by hard water. Our dishwasher is leaving a white film on everything, and occasionally a couple pieces look completely unwashed (still have food on/in them).
Bathroom grout cracking and developing brown residues.
I tried this with dishwasher cleaner and a mug of vinegar on the top rack and the dishes came out slightly cleaner than usual with just a little grit the is it anything left on the dishes when you put them in? When the dishwasher does not clean properly, the high temperature at which the dishes are dried burns the food residue on the dishes. If your dishwasher is leaving a brown residue, it may just need a good cleaning, but that's not the only possible reason for brown discoloration. Again, this is the stuff that could be sprayed back up into your cups or dishes.