Glass vs Plastic Baby Bottles: Pros and Cons
By Dr Browns | Published: 2026-10-17
Category: Comparisons
Compare glass and plastic baby bottles on durability, weight, safety, and cost. Find out which material suits your baby's feeding stage and lifestyle.
Quick answer
Glass baby bottles are durable, easy to sterilize, and free of plastic-related concerns, but they are heavier and can break if dropped. Plastic bottles are lightweight and shatterproof, yet they may scratch and require more frequent replacement. Choose glass for home feeding and plastic for travel or older babies who can hold their own bottle.
Key differences between glass and plastic bottles
Glass bottles are made from tempered or borosilicate glass, which resists thermal shock and can be sterilized repeatedly without degrading. They do not absorb odors or stains, and they are generally considered free of chemicals like BPA. However, they are heavier and can break if dropped, which is a safety concern for older babies who throw things.
Plastic bottles are typically made from polypropylene or other food-grade plastics. They are lightweight, shatterproof, and easier for babies to hold. The trade-off is that plastic can scratch over time, which may harbor bacteria, and some parents worry about chemical leaching, especially when heating. Most modern plastic bottles are BPA-free, but the material still degrades with frequent use.
When glass makes sense
Glass bottles are ideal for newborns and young infants who are fed by a parent. They are easy to clean and sterilize, and they do not retain milk odors. If you are feeding at home most of the time, glass is a solid choice. For example, Dr Brown's Anti-Colic Options+ Wide-Neck Baby Bottle in glass (if available) combines the anti-colic vent system with the benefits of glass.
However, glass bottles are heavier, so they are not practical for babies who are learning to hold their own bottle. They also require careful handling to avoid breakage. If you drop a glass bottle, it can shatter, creating a safety hazard.
When plastic makes sense
Plastic bottles are great for on-the-go feeding, travel, and older babies who can hold their own bottle. They are lightweight and shatterproof, so they survive drops and rough handling. Many plastic bottles, like Dr Brown's Options+ Narrow Neck Triple Pack, are BPA-free and feature anti-colic vents.
The downside is that plastic can scratch and wear over time, which may affect hygiene. You may need to replace plastic bottles more frequently than glass ones. Also, some parents prefer to avoid plastic for environmental or health reasons.
Trade-offs at a glance
- Durability: Glass lasts longer if handled carefully, but it can break. Plastic is shatterproof but scratches and may need replacement sooner. Choose glass for longevity, plastic for resilience.
- Weight and handling: Glass is heavier, making it harder for babies to hold. Plastic is lightweight and easy for little hands to grip. Plastic is better for self-feeding; glass is fine for parent-led feeding.
- Safety and hygiene: Glass is non-porous and easy to sterilize, with no chemical leaching concerns. Plastic is BPA-free but can harbor bacteria in scratches. Glass is more hygienic over time; plastic requires careful inspection.
Product facts to help you decide
- Dr Brown's Anti-Colic Options+ Wide-Neck Baby Bottle, 5oz/150ml, 2-Pack - Designs: Dr Brown's Anti-Colic Options+ Wide-Neck Baby Bottle, 5oz/150ml, 2-Pack - Designs features a 100% vacuum-free vent system and comes in adorable jungle or woodland-inspired designs. This bottle is designed to reduce colic and is available in plastic or glass (check options). The wide neck makes cleaning easier, and the vent system helps prevent air swallowing, which is a common cause of gas and fussiness.
- Dr Brown's Options+ Narrow Neck Triple Pack 250ml: Dr Brown's Options+ Narrow Neck Triple Pack 250ml includes 3 bottles and 3 Level 1 teats, with a clinically proven vacuum-free vent system. This plastic option is lightweight and suitable for daily use. The narrow neck is familiar to many babies, and the vent system reduces colic. It is a practical choice for parents who prefer plastic for convenience.
Which bottle should you choose?
Best for
- Newborns and young infants fed by a parent at home
- Parents who prioritize easy sterilization and long-term durability
Not for
- Older babies who hold their own bottle or throw things
- Families who need lightweight, shatterproof bottles for travel or daycare
