Myth What about the viral claim? Do plastic baby bottles shed microplastics? What to know 

Why make the swap

  • Why switch to glass baby bottles

    Glass isn’t plastic, so it can’t shed microplastics, and it handles boiling. The BIBS bottle’s natural rubber nipple skips silicone too; the Evenflo bottles have silicone nipples.

  • What's the concern with plastic baby bottles

    Sterilising and mixing formula with hot water wears polypropylene bottles, and the bottles shed particles into the milk.

  • General information, not medical advice. Ask your pediatrician before changing what your baby or child uses.

  • Good to know before you buy

    The BIBS nipple is natural rubber: skip BIBS if anyone in the house has a latex allergy, and choose a glass bottle with a silicone nipple instead. The screw ring is plastic and sits outside the milk. Worried about drops? A cotton or knit bottle sleeve helps.

    BIBS glass bottle, natural rubber nipple, 225 ml: The nipple is natural rubber latex: skip it if your baby or anyone in the house has a latex allergy.

    Evenflo glass 4 oz 6-pk: The nipple is silicone and the collar is plastic; only the bottle is glass.

    Evenflo glass 8 oz 6-pk: The nipple is silicone and the collar is plastic; only the bottle is glass.

  • Sources (1)
    1. Li et al. 2020, Nature Food: up to 16.2M particles per litre (opens in a new tab)

    Health and safety facts on this page come from this source. What a pick is made of comes from its maker's listing or website, as stated on the date we checked.

Questions people ask

Do plastic baby bottles shed microplastics?

Yes, plastic baby bottles shed microplastics: in a 2020 study, polypropylene bottles shed up to 16.2 million particles per litre, and sterilising and hot water made it worse. The full story: Do plastic baby bottles shed microplastics?

Are glass baby bottles all glass?

The bottle is all glass. The screw ring is plastic and sits outside the milk. One pick has a natural rubber nipple, so skip it if anyone at home has a latex allergy; the others are silicone.

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