Mason Bottle DIY Kit

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  • Regular price $19.99

Save yourself the clutter and the cost by putting that cupboard full of mason jars to good use! The Mason Bottle DIY Kit includes everything you need to convert your own mason jars into easy to clean, cost effective glass baby bottles. 

Mason jars are freezer safe so you can easily store breast milk in the mason jars and then warm and serve from the same jar AND you can use the jars to store homemade baby food.


  • 1 2pk of Mason Bottle Silicone Nipples (Slow Flow)
  • 1 Silicone Sleeve (available in either 4 oz. or 8 oz. sizes)
  • 1 plastic cap (fits metal mason jar ring)
  • Jars are NOT included, just shown for context


  • Milk flows smoothly with no air bubbles and no leaking
  • Dual-valve ventilation system to prevent gas and colic
  • Easy to Clean
  • Non-Toxic, BPA and BPS free
  • Approximate volume markings on sleeve


  •   Made in the USA

Customer Reviews
4.9 Based on 114 Reviews
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Sonya W.

I love the options to use this on regular mason jars. I try and avoid plastic as much as possible, so it's nice that I can put this on a cheap jar, but also care for my baby's health and cut costs!

Brianna H.

We started using Mason bottles at 3 months when I had to go back to work. The bottles were easy to clean, nipples are free of bpa and are dishwasher safe which was a relief as a new mom (yaaaaaay for easy cleaning!) We moved to the sippy cups a few months ago and I love the portability. My daughter loves that she can independently drink without mom hovering (I was always nervous with the glass even though we never had one break. ) We will continue to use Mason Bottle through her childhood. My only complaint is that when I ordered more water bottles they didn't come with the silicone insert and when I emailed the company about buying them separately I was told that was not an option so I have 2 inserts and 6 stainless steel water bottle shells.

Brooke M.

I am impressed with the quality of the product and I can't wait to use them after my newest little one arrives in December!

Shawna C.

It’s better than I expected! Easy to clean, easier for baby to use since he began as a nursing baby and now has to be fed fully by formula, the nipple shape is perfect for him! Couldn’t be more satisfied! I’m happier each time I use it!

Chelsea B.

These are so convenient and easy to clean!