I use "OdoBan" in my final rinse. It makes towels, (and all my laundry) smell fresh wonderful. For stubborn musty odors in clothing, I turn off the washer, and let the final rinse soak for thirty minutes or so.
It is inexpensive ($10 for a full gallon jug plus a 24 oz refillable spray bottle). It has too many uses to mention. It is not a masking agent. It eliminates all odors and kills 99.99% of germs. With six dogs, I wouldn't be without it.
By Erika from Tallahassee, FL
This page contains the following solutions.
My child is always leaving towels lying around on the floor, or the furniture. They are never dry when she drops them where she does.
My facecloths were getting to the point of making me want to vomit from the smell they gave off once wet. I found that lots of people are having this problem.
Removing mildew smell from towels: Even, large, dark colored ones that can't be bleached. Soak the towels in 50% diluted tomato juice for two or three hours, run the wash cycle to be sure the towels are completely saturated, then rinse two or three times in cold water.
Tracking down the cause of a stinky metallic smell in bath towels fresh from the wash can be a bit of a mystery. Possible causes can be your plumbing, water supply, or even the water heater. Persistence and a process of elimination my be required.