The choice between glass and plastic baby bottles comes down to your family's lifestyle and daily routine. High borosilicate glass baby feeding bottles offer exceptional hygiene, thermal shock resistance, and zero risk of chemical leaching, making them ideal for home use. Conversely, FDA-approved PP plastic feeding bottles are lightweight, shatterproof, and incredibly convenient for travel, late-night feeds, and packing in a diaper bag.

If you are standing in the baby aisle—or scrolling through online stores—wondering which bottle material to choose, you are not alone. It is one of the most common questions new parents ask when building their nursery registry.

At Roots Natural, we believe feeding time should be safe, comfortable, and beautifully vibrant. Whether you lean toward our classic plastics or our premium glass options, understanding the materials behind the bottle will help you make the most educated, confident choice for your little one.

For a complete look at your baby's feeding journey, check out our guide The Ultimate Guide to Baby Feeding

The Benefits of Glass Baby Bottles

For decades, glass was the only option for baby bottles—and for good reason. However, not all glass is created equal. While some standard glass bottles on the market can be prone to cracking under rapid temperature changes, Roots Natural uses High Borosilicate Glass.

• Thermal Shock Resistance: Because we use high borosilicate glass, our bottles can safely transition from the cold refrigerator directly into boiling water for sterilization without shattering.

• Ultimate Hygiene and Safety: Glass is naturally non-porous. It will never absorb odors, flavors, or colors from breast milk or formula.

• Zero Chemical Leaching: Even when heated to high temperatures, high-quality glass remains completely stable, giving parents total peace of mind.

• Scratch-Resistant Longevity: Unlike standard materials, borosilicate glass doesn't easily scratch inside when you use a bottle cleaning brush. This means there are no microscopic grooves for bacteria to hide in.

• Aesthetic Appeal: There is a distinct, premium feel to glass. Our collection features beautiful colorful glass baby bottles that pair superior functionality with playful, elegant designs.

Explore our high-end, eco-friendly options in the Premium Feeders collection.

The Benefits of Plastic Baby Bottles

Modern plastic bottles have come a long way and offer unmatched convenience. However, when choosing plastic, material quality is everything. While generic market plastics can sometimes warp, degrade, or present leaching risks over time, Roots Natural exclusively uses FDA-Approved Polypropylene (PP).

• 100% BPA & BPS-Free: Our bottles are free from Bisphenol-A (BPA) and Bisphenol-S (BPS), ensuring no harmful chemicals ever come into contact with your baby’s milk.

• Microwave Friendly & Heat Safe: Thanks to the high-grade PP material, our classic colorful plastic baby feeding bottles are microwave friendly and designed to withstand countless boiling or steaming sterilizations without degrading.

• Lightweight Convenience: They are easy for parents to hold during long midnight feeds and are perfect for babies learning to grip the bottle themselves.

• Shatterproof Durability: Sleep-deprived drops happen! Plastic bottles won't shatter on your kitchen floor, making them the safest option for chaotic mornings and travel.

• Perfect for Newborns: For those earliest days, our J1010 Newborn Baby Feeder is crafted from this safe, lightweight PP plastic with an optimized slow-flow nipple, ensuring a comfortable, paced feeding session without fatiguing your wrist.

Find your perfect everyday match in our Classic Feeders collection.

Head-to-Head Comparison

Making the Right Choice for Your Family

The secret most experienced parents will tell you? You don't have to choose just one.

Many families opt for a hybrid approach. They use premium glass baby feeding bottles at home for their durability and ease of sterilization, and keep a stash of lightweight infant feeding bottles made of FDA-approved plastic for the diaper bag, travel, and daycare.

Whichever you choose, ensure you are pairing your bottles with the right flow-speed teats to keep your baby happy and reduce the risk of colic.

Frequently Asked Questions

How often should I replace plastic baby bottles?

Even with high-quality PP plastic, you should ideally replace plastic baby bottles every 4 to 6 months, or immediately if you notice any deep scratches or cloudiness, as bacteria can harbor in these imperfections.

Can I put glass baby bottles in the freezer?

Yes! Because our bottles are made from high borosilicate glass, they can safely withstand freezing temperatures, making them great for storing pumped breast milk. Just remember to leave room at the top, as liquids expand when frozen.

Are both types dishwasher safe?

Yes. Glass bottles can easily withstand the bottom rack, while plastic bottles should generally be placed on the top rack of the dishwasher to keep them away from the direct heating element.