hi, I feed similac IQ + for my baby.Feeding bottle smells badly even washing with soap and sterilize also. Please suggest me .

A. Baby hug# Here's some things you can try: Odors: Odors may be removed by putting baking soda and warm water in the bottle and cleaning with a bottle brush. To get rid of stronger odors like a sour-milk smell, fill the bottle with warm water, add a teaspoon of baking soda, shake well, and let stand overnight.