How to Know If a Baby Teether Is Safe: A Complete Parent's Checklist

The Label Says ‘Safe.’ That Doesn’t Mean Much.

A 2013 study found that a majority of teethers labeled ‘BPA-free’ actually contained BPA — and products marketed as ‘non-toxic’ weren’t always free of toxic chemicals either. That’s the uncomfortable starting point for any parent trying to evaluate a teether. The packaging is not the proof. Knowing what to look for underneath the marketing is.

Teethers sit in a baby’s mouth for extended periods, often during the most chemically vulnerable window of development. Growing scientific evidence suggests BPA and phthalates may be associated with hormonal and developmental problems, and infants are likely at greatest risk from exposure during their early developmental years. So the question ‘how do I know if a baby teether is safe?’ deserves a specific, technical answer — not just a reassuring label.

Start With the Material, Not the Marketing

The single most important variable in teether safety is what it’s made of. There are three materials that show up in reputable products: food-grade silicone, natural rubber, and untreated hardwood like beech. Each has trade-offs.

Food-grade silicone is the most broadly recommended. Food-grade silicone is specifically made to be safe for food and mouth contact — it’s non-toxic and doesn’t release harmful substances, which is especially important for babies who chew for comfort. When silicone meets FDA and/or LFGB food-contact standards, it’s tested to help ensure it’s suitable for mouthing and won’t release unwanted substances, and quality food-grade silicone does not contain BPA, PVC, or other common plasticizers. Critically, one reason food-grade silicone is so popular is its durability and heat resistance — high-quality, food-grade silicone can withstand high temperatures without melting or warping, unlike many plastics.

Natural rubber is soft and biodegradable, but pediatricians advise caution because natural rubber contains latex, which can be an allergen for some infants — always monitor your baby for signs of skin irritation when using latex products. Rubber can also degrade faster under UV light or with repeated sterilization.

Beechwood teethers appeal to parents looking for a chemical-free, minimal option. Wood is chemical-free and tactile, but it’s porous and needs careful cleaning and oiling — it’s not ideal for high-frequency use without proper maintenance. Wooden teethers also can’t be sterilized in boiling water or a dishwasher, which limits hygiene options over time.

The one material to approach with the most scrutiny is conventional plastic. Many soft plastic teethers contain phthalates — chemicals that can leach into a baby’s mouth and disrupt hormonal development — and even products labeled ‘BPA-free’ may still contain harmful substances. Phthalates are plasticizers linked to serious health risks including developmental and hormonal issues in babies. Manufacturers may replace BPA with equally harmful chemicals like BPS or BPF and still apply a ‘BPA-free’ label — a practice called ‘regrettable substitution’ that can still expose babies to dangerous toxins.

The Certifications That Actually Matter

Certifications are where you move from trusting a brand’s word to trusting a test result. For teethers sold in the United States, here’s what to look for on the product page or packaging:

• CPSC / CPSIA compliance: Companies should adhere to standards set by ASTM International or the Consumer Product Safety Commission (CPSC) in the US for testing the safety of items made for kids. CPSIA specifically bans certain phthalates and mandates third-party testing for children’s products.
• FDA food-contact compliance: FDA and LFGB testing are environmental testing certifications in the United States and Europe respectively — silicone products that pass these two certifications can reach the level of food-grade environmental protection and fully meet the requirements of maternal and infant products.
• ASTM F963: The standard safety specification for toys, which covers physical and mechanical properties including bite force resistance and small-parts testing.
• Third-party lab verification: A higher price does not automatically mean safer — verified compliance does. Look for products where an independent laboratory (not just the manufacturer’s own quality control) has confirmed the material claims.

For silicone teethers specifically, ensure the label specifies ‘100% food-grade’ or ‘platinum-cured’ silicone, both of which are FDA-approved for oral use. ‘Silicone’ alone on a label is not enough — poor-quality silicone products may contain fillers or additives to cut costs, and these fillers can compromise the safety of the teether and lead to potential health risks.

Design Red Flags to Spot Before You Buy

Material and certifications cover what a teether is made of. Design covers whether it stays safe once it’s in a baby’s hands — and mouth.

When evaluating design, look for: no detachable beads, no glued joints, no decorative attachments — a one-piece mold reduces choking risk significantly. Avoid multi-piece teethers or those with small detachable beads, which may pose a choking risk if they break. Teething necklaces and bracelets worn by adults can be hazardous if babies chew them unsupervised or if the string breaks.

Beyond choking, pay attention to smell and texture. High-quality silicone should be odorless — a strong chemical smell may indicate the use of fillers or low-grade materials. And the teether should be firm enough to provide relief but soft enough to be gentle on your baby’s gums.

Age-appropriateness is another factor that often gets skipped. Newborns (0–3 months) need different grip and texture than 6–12 month babies — a teether sized for an older infant can be a choking hazard for a newborn. Check that the product specifies an age range and that the size is appropriate for your baby’s developmental stage.

Finally, inspect every teether you already own. It’s advisable to routinely inspect the teether for any signs of wear or damage. Teethers containing BPA, phthalates, and PVC have a high risk of leaching out due to their chemical instability — chemical leaching is a consequence of regular interaction with saliva, temperature changes, and material degradation over time. Even a safe teether can become unsafe once it starts cracking or tearing.

The Quick-Reference Safety Checklist

Before handing any teether to your baby, run through these questions:

1. Material: Is it made from 100% food-grade silicone, untreated hardwood, or natural rubber (with no family latex allergy history)?
2. Chemical claims: Does the product explicitly state it is free of BPA, PVC, phthalates, lead, and cadmium — not just ‘BPA-free’?
3. Certifications: Does it comply with CPSC/CPSIA standards, and has it been tested by a third-party laboratory?
4. Design: Is it one-piece, with no beads, strings, glued joints, or small detachable parts?
5. Smell: Is it odorless out of the packaging?
6. Age fit: Is the size and firmness appropriate for your baby’s current stage?
7. Condition: Is the teether free of cracks, tears, or discoloration?

If any answer is unclear or ‘no,’ it’s worth finding a product where you can confirm all seven.

Loulou Lollipop’s silicone teether collection is built around exactly this standard. Every teether toy and ring is safety-tested by a leading third-party laboratory to ensure it is entirely free of BPA, PVC, phthalates, lead, cadmium and other toxic substances, and compliant with Consumer Product Safety Commission (CPSC) regulations. Their single teethers are made from 100% food-grade silicone in one-piece designs with textured surfaces for gum relief — no beads, no strings, no guesswork on material claims.

One More Thing: Cleaning Matters Too

Even the safest teether becomes a hygiene risk without regular cleaning. Silicone teethers are easy to clean because they are non-porous and can handle high heat — you can place them in boiling water for about 5 minutes to remove most germs, or put them on the top rack of the dishwasher on a sanitize cycle.

For wood teethers, wipe with a damp cloth and mild soap, avoid soaking, and apply food-safe mineral oil occasionally to maintain the wood grain. And for any teether, overly aggressive cleaning methods like prolonged bleach exposure can degrade finishes or printed elements — so follow the manufacturer’s specific guidance rather than assuming more is better.

Safety at purchase and safety in daily use are two different things. Both matter.