Baby Items

The concern: Baby bottles, teethers, and feeding equipment are particularly concerning because infants are more vulnerable to microplastic exposure. A landmark study published in Nature Food found that polypropylene baby bottles can release up to 16 million microplastic particles per litre when used to prepare formula. Sterilisation — which typically involves temperatures of 100°C — dramatically amplifies this shedding. Each sterilisation cycle degrades the plastic surface, meaning older bottles release progressively more particles. Even shaking formula in a plastic bottle increases particle release due to mechanical abrasion against the inner walls.

Why it matters: Babies have developing immune and endocrine systems, making them potentially more susceptible to the effects of microplastic exposure. They also mouth and chew on items constantly. The combination of heat (sterilisation, warm formula) and plastic creates peak microplastic shedding conditions. Crucially, infants have a much lower body weight relative to their exposure — a baby consuming formula from a plastic bottle ingests a far higher concentration of microplastics per kilogram of body weight than an adult drinking from the same material. This makes choosing microplastic free baby products UK parents can trust an especially important decision during the first years of life.

What to look for: Glass baby bottles with silicone teats are the safest option. Natural rubber teethers (like those from the Hevea tree) avoid plastic entirely. For feeding equipment, look for stainless steel, glass, or natural rubber. Avoid polypropylene bottles, especially for heated liquids. When choosing bowls and plates, opt for stainless steel or bamboo fibre composites (ensure they are melamine-free). For bibs, look for silicone or organic cotton rather than plastic-backed nylon. Teething toys should be natural rubber or untreated hardwood — avoid any "BPA-free plastic" teethers, as they may still shed other polymer particles. Always check that products meet UK safety standards (BS EN 14350 for drinking equipment).