Is your bottle cloudy, stained, or is there an odor?

There are two reasons for bottle odor, depending on if your bottle is used or brand new. If it’s new, the odor is most likely from the plastic material. If it’s used, most often it’s because a bottle can develop an odor after long-term use. Here are solutions for each.

Odor with a new bottle

When plastic bottles are new, they can sometimes have an odor to them. Our quality control found the odor went away after one wash in the dishwasher or by hand with a standard hand dish soap.

Odor, cloudiness and staining with a used bottle

Over time, milk and formula can build up in the bottle and can cause a slight odor. The same can stain them or cause cloudiness. Moms have used the following tricks:

  • Stains and Cloudiness: Soak bottle in a 50/50 mixture of white vinegar and water, and then rinse with cold water, which can help remove stains and cloudiness as well as odors.
  • Juice odors: Juice odors may be removed by putting baking soda and warm water in the bottle and cleaning with a bottle brush.
  • Sour milk odors: 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.
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