Natural Glass Baby Bottle 4 Pack - Extra Slow Flow Newborn Set

In this review of the Natural Glass Baby Bottle 4 Pack, the bottom line is simple: this set is aimed at parents who want a safe, breastlike bottle for newborns and small infants. The kit stands out because the ultra-soft, extra slow flow nipple and anti-colic venting are designed to support babies learning to latch and to reduce swallowed air, while the premium borosilicate glass removes concerns about plastic toxins. For caregivers who prioritize easy cleaning and a breastfeeding-friendly flow, this set delivers a practical, low-fuss option.

Key Features

• 4 Pack, 5 oz Bottles: Four small bottles are sized for newborn feeds and make rotation and frequent washing manageable for new parents.
• Extra Slow Flow Nipples: The 0m+ extra slow flow nipples encourage proper suction and are useful for breastfed babies who need a gentle paced feed.
• Premium Borosilicate Glass: Glass construction is naturally free of BPA, BPS and phthalates, giving a safer feeding surface that resists staining and odors.
• Anti-Colic Venting: Vents in the nipple help reduce air intake so babies can feed continuously without gulping air or bubbles.
• Easy to Clean Design: Wide neck bottles have only four parts each, making cleaning and reassembly straightforward even when washing frequently.
• Storage Caps Included: Each bottle in the pack comes with a cap for safe short-term storage or travel between feeds.

Who It's For

This set is best for nursing mothers who want a bottle that closely mimics breastfeeding and helps breastfed infants transition between breast and bottle with minimal confusion. It also suits parents who prefer glass over plastic for chemical safety and who value a compact 5 oz size for newborn feeds.

Parents who need faster flow options for older infants or who want a very rugged, unbreakable bottle for rough travel should look elsewhere, since these glass bottles are designed for newborn pacing and are more fragile than plastic alternatives.

Pros & Cons

Pros

• Feels breastlike thanks to an ultra-soft nipple that aids natural latch for breastfed babies.
• Glass material gives peace of mind about toxins and stays odor- and stain-resistant over time.
• Simple construction and wide neck make cleaning fast and reliable with only four parts per bottle.
• Anti-colic vents and extra slow flow support a calm feed and reduce swallowed air.

Cons

• Glass is less impact-resistant than plastic, and some shoppers report mixed durability experiences.
• Extra slow flow is ideal for newborns but may be too slow as the baby grows, requiring different nipples later.

Specifications

Pack	4 bottles with 4 storage caps
Capacity	5 oz per bottle
Nipple Flow	Extra slow flow (0m+)
Material	Premium borosilicate glass
Parts per Bottle	4 pieces (bottle, nipple, collar, cap)
Cleaning	Sterilizer, bottle warmer, microwave and boiling water safe

Our Verdict

The Natural Glass Baby Bottle 4 Pack is a smart choice for breastfeeding parents seeking a gentle, slow-flow alternative that mimics natural feeding and limits exposure to plastics. It offers clear value through easy cleaning, anti-colic venting and safer glass material, though families needing rugged, high-flow bottles will want different options as the baby grows.

Frequently Asked Questions

Are these bottles safe for sterilizing?
Yes. The borosilicate glass bottles are safe to sterilize in a sterilizer, bottle warmer, microwave and by boiling water.

Will the extra slow flow nipple work for breastfed babies?
Yes. The ultra-soft nipple and guided point design are intended to help breastfed babies maintain latch and correct suction habits.

Do the bottles leak during travel?
Customers report they do not leak when assembled correctly and the pack includes storage caps for short-term transport.