Eden was Organic

If you’ve spent any time here at Eden Was Organic, you know I care deeply about what comes into our home — especially when it comes to our babies. As a mom in my 30s trying to live low-tox (without spiraling into perfectionism), bottles were one of those everyday essentials I researched more than I expected to.

Glass was non-negotiable for me. I wanted to avoid microplastics, minimize chemical exposure, and feel confident about what was touching my baby’s milk multiple times a day. But once you decide on glass, you quickly realize not all glass bottles are created equal.

Today I’m sharing my honest thoughts on three popular options: Philips Avent, Dr. Brown’s, and Pigeon — including concerns around lead, nipple design (yes, we’re talking about the “triangle test”), and overall practicality. And I’ll tell you up front: Pigeon is my personal favorite.

This post may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases. I only recommend products I genuinely use and trust.

Why Glass in the First Place?

Before comparing brands, here’s my mindset.

Glass bottles:

• Don’t leach microplastics when heated Are easier to fully sanitize Tend to avoid questionable coatings found in some plastics

For a low-tox home, that already feels like a win. But I also wanted to know:

• Are they truly free of heavy metals like lead?
• And do the nipples support a healthy latch for breastfed babies?

Those two questions mattered most to me.

Good: Philips Avent Glass Bottles

Philips Avent is one of the easiest glass bottles to find in the U.S., which makes it appealing right away. The shape is simple, the parts are minimal, and they’re made from borosilicate glass (which handles temperature changes well).

Lead Concerns

From available third-party testing reports, the glass itself has not shown detectable lead in current versions. That was reassuring to me. As always, I recommend avoiding bottles with exterior painted measurement markings that could contain heavy metals — but Avent’s recent glass bottles have not been associated with widespread lead issues.

Nipple & “Triangle Test”

The “triangle test” is something many lactation consultants use to evaluate whether a bottle nipple supports a wide, deep latch similar to breastfeeding. When gently pinched at the base, a nipple that collapses into more of a triangular shape tends to allow for better oral function and latch mechanics.

Avent nipples generally do not pass the triangle test.

They’re wider at the base but remain fairly structured and don’t contour in a way that mimics a deep breastfeeding latch.

For exclusively bottle-fed babies, this may not matter. But for combo-feeding families, it’s something to consider.

My Take: Avent is dependable, accessible, and simple. If convenience is your top priority, it’s a solid choice — but it wasn’t my top pick for latch support.

Check out the Avent bottles here

Better: Dr. Brown’s Glass Bottles

Dr. Brown’s has a strong reputation, especially for babies who struggle with gas or reflux. Their internal vent system is designed to reduce air intake.

Lead Concerns

Testing reports on Dr. Brown’s glass bottles indicate no significant detectable lead in the glass components. That aligned with what I look for from a safety standpoint.

One thing to note: the vent system contains plastic parts. If you’re trying to minimize plastic exposure as much as possible, this is worth considering.

Nipple & “Triangle Test”

Dr. Brown’s nipples typically do not pass the triangle test. The shape is more narrow and traditional, and while it works beautifully for many babies, it doesn’t closely mimic a breastfeeding latch.

My Take: If your baby struggles with gas, Dr. Brown’s can truly be helpful. But the extra parts and more traditional nipple shape weren’t my preference long-term.

Check out the Dr. Brown’s bottles here

Best: Pigeon Glass Bottles

Pigeon is a Japanese brand that isn’t always as mainstream here in the U.S., but once I discovered it, I understood why so many lactation professionals recommend it.

Lead Concerns

Past concerns about heavy metals in some international baby products made me cautious, but current Pigeon glass bottles have not been shown to contain detectable lead in the glass based on updated safety testing and regulatory compliance. As always, I avoid any bottle with decorative exterior paint.

For my own peace of mind, I stick to clear glass versions with minimal exterior markings.

Nipple & the Triangle Test

Here’s where Pigeon really stands out.

Pigeon nipples are widely recognized for passing the triangle test.

They are softer, more responsive, and shaped to encourage a deep latch. When compressed, they contour in a way that supports natural oral movement.

For breastfeeding families, this can make a noticeable difference.

Why I Chose Pigeon:

Simple design (no complicated vent systems) Borosilicate glass Breastfeeding-friendly nipple shape Easy to clean Thoughtful engineering without unnecessary extras.

It aligned with my values: intentional, functional, and supportive of how our bodies were designed to work.

Check out the Pigeon bottles here

Notable mention: Lansinoh

Without personal experience or mention from my IBCLC, I did not feel comfortable adding them to the list. However, I have recently seen them pop up on a ton of registries!

Check out the Lansinoh bottles here