We’ve Been Playing with Our Bottles Again . . .

Posted on March 11th, 2008 by Alicia

NEWLY UPDATED 10/21/08

The Girls and I had a wild itch to take every single bottle apart and see which nipples, venting systems, etc. would fit other brands of bottles. We came away from our mishmash of bottle parts with several interesting tidbits. This summary is based on bottles we stock in our store.

The Bottle Exchange

The following wide neck nipples fit each other’s bottles: Born Free, Green to Grow, Sassy MAM UltiVent , Think Baby, Momo Plastic Wide Neck and Nuby Wide Neck.
Think Baby nipples will only work with Born Free bottles when the Born Free air vent is removed, because Think Baby’s vent is a little tube on the bottom of the nipple that goes straight down into the bottle.
We’ve heard from many relieved parents that the Think Baby vented nipple is amazing with the Sassy MAM vented bottle for extremely gassy babies.
The following regular neck nipples fit all each other’s bottles: Dr. Brown’s, Evenflo (includes Siliskin), Green to Grow, Momo Glass, Nuby Regular Neck Bottles and Weego.
It turns out that the Dr. Brown’s venting system fits most regular neck bottles, including Weego, Green to Grow, Nuby, Momo Glass and Evenflo. It does require the use of a Dr. Brown’s collar (they are taller than a normal collar). The reservoir tube needs to be trimmed to fit the bottle (with the exception of Weego).
We had a reader try a wide neck Green to Grow bottle with the wide neck Dr. Brown’s venting system. It didn’t fit, not even with the Dr. Brown’s collar (the collar wouldn’t tighten all the way).
Mother’s Milkmate storage bottles are the same size as Medela, which means they’ll fit Medela breast pumps. We also found that Dr. Brown’s (without the vent inserted), Evenflo (includes Siliskin), Green to Grow (reg. neck) and Weego fit the Mother’s Milkmate bottle ring, so they too will fit a Medela breast pump. We also confirmed with Green to Grow that their bottles fit Lansinoh breast pumps, which means all of these bottles will also work with Lansinoh – Yeeaahh!
It’s been reported by several of our readers that none of our bottles will work with Avent Isis breast pump. Read some very helpful input from parents here.
Evenflo’s Comfort Select nipple is quite a neat little invention. It fits almost any regular neck bottle and serves like a wide neck nipple. Please note when using the Comfort Select nipple with the Evenflo bottles, the cap will not fit over the nipple – so traveling with it in the diaper bag may not work out so well.
Think Baby and Born Free’s training spouts work with all of our wide neck bottles. This is a great way to transition baby from bottle to sippy cup. Think Baby now offers a sippy conversion kit.
It turns out the you can use of all of our wide neck nipples with Klean Kanteen sippy! And thanks to Evelyn’s tip, we can use the Born Free and Think Baby spouts instead of the Avent sippy spouts too! You’ll need to use the sippy adapter to make this work.
Think Baby and Born Free handles and sippy spouts fit the Green to Grow wide neck bottles, making a great little transition cup.
Playtex Drop-ins NaturaLatch nipple does NOT work with any other bottle we’ve tried so far.
AND THE MILLION DOLLAR QUESTION IS: Does the famous Avent nipple work with any of our BPA free bottles? The basic answer is no, not really YES!! The nipple fits all of our wide neck bottles, but it leaks from under the bottle ring/collar. The only bottle the Avent nipple officially works with is the Nuby wide neck bottle with handles. You’ll need to use an Avent collar with the nipple and Nuby bottle to make it work correctly. We attribute the leaking issue with other bottles to the Avent venting system causing the nipple to stand higher, which in turn prevents the ring/collar from tightening down completely. UPDATE 10/21/08: The new BPA free Avent bottles are now available at The Soft Landing! No more trying to make those nipples work with another bottle