Microplastics have been found in human blood, breast milk, and newborn lungs. We are doing something about it.See the research →
🌿 Next #PlasticFreeChallenge starts May 5 — the free 6-week home plastic detox.Get notified →
Plastic-Free Rating
Baby & Kids
Baby & Kids·Pura Kiki

Pura Kiki Stainless Steel Infant Bottle 5oz

A
PFR Grade
Excellent — minimal plastic, transparent materials, safe for daily use
18/8 stainless steel bottle body with medical-grade silicone nipple. Zero plastic contact with milk.
PFR Approved

5oz stainless steel infant bottle. Converts to sippy cup, straw cup, or sport bottle as baby grows. Medical-grade silicone nipple.

Score Breakdown

How scores are calculated

Materials (40%): How plastic-free the product is — raw materials, construction, and coatings.

Packaging (20%): Is the product packaged in plastic? Is it recyclable?

Transparency (20%): Does the brand disclose ingredients, sourcing, and manufacturing?

Durability (20%): How long does it last? Longer-lasting products reduce plastic waste over time.

Materials
9
Packaging
9
Transparency
7
Durability
8

Brands cannot pay for higher scores. If you buy through our link, we may earn a small commission at no extra cost to you.

Last updated: April 20, 2026

Share:X / TwitterFacebook
Low Exposure Risk — Why This Product Category Matters

No significant plastic exposure risk.

Why We Recommend This Product

18/8 stainless steel bottle body with medical-grade silicone nipple. Zero plastic contact with milk.

Chemical & Health Analysis

Each chemical of concern is broken down below — what it is, where it comes from in this product, what it does to the body, and who is most at risk.

1

None

Source

Health Risk

Stainless steel body eliminates all plastic-to-liquid contact

Who Is Most At Risk

All health claims are based on published, peer-reviewed research from the NIH, WHO, IARC, and peer-reviewed journals. This information is for educational purposes and does not constitute medical advice.

Was this rating helpful?

Stay Informed

Get New Ratings in Your Inbox

We add new product ratings weekly. No spam — just science-backed ratings to help you reduce your plastic exposure.