Borosilicate glass releases zero microplastics during sterilization — unlike plastic bottles, which shed up to 16 million particles per cycle.

Sustainable rubberwood with non-toxic water-based dyes. Zero plastic particles released when mouthed or chewed — unlike conventional plastic toys.
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Babies mouth and chew their toys constantly, so the material matters most here. This set is solid rubberwood finished with non-toxic, water-based dyes — no plastic components to shed particles, and no BPA or phthalates that plastic toys can carry.
What this toy is made of: sustainably harvested rubberwood with water-based color. No plastic parts, no synthetic coating.
Plastic toys are one of the most direct sources of microplastic exposure for babies and toddlers. Children mouth, chew, and suck on toys constantly — sending plastic particles straight into their developing bodies.
Research shows children ingest significant microplastics from mouthing plastic toys, which can contain BPA, phthalates, and heavy metals. Babies are especially vulnerable because of their hand-to-mouth behavior and developing immune systems.
Straight answer: we're a research team, not a testing lab. Here's exactly what our rating is based on — and what it isn't — so you can weigh it honestly.
Anything that adds a known microplastic, PFAS, or off-gassing source — a non-stick coating, a plastic surface against food or skin, vinyl/PVC — is downgraded or cut. We only list what clears that bar.
Borosilicate glass releases zero microplastics during sterilization — unlike plastic bottles, which shed up to 16 million particles per cycle.
100% stainless steel body with medical-grade silicone spout. Grows with your child via interchangeable tops — from infant to toddler.
GOTS-certified organic cotton and wool fill — no polyurethane foam or polyester that sheds microplastic fibers while your baby sleeps.
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