The Original Mason Bottle makes transitioning between breast and bottle a breeze for babies. Mason Bottle is also the most eco-friendly, parent-friendly, and budget-friendly glass baby bottle on the market.

This product includes:

• One silicone nipple (slow flow size)
• One plastic cap
• One regular-mouth mason jar (4 oz. or 8 oz. size) complete with metal lid and collar.

NATURAL MILK FLOW

• Wide breast-like nipple design to transition between breast and bottle 
• Built-in ventilation system to reduce gas and colic
• Milk flows smoothly with no air bubbles and no leaking

SAFE & NON TOXIC

• Naturally BPA-free to prevent chemical leaching
• Milk never comes into contact with plastic
• 100% Made in the USA

EASY TO CLEAN

• Wide design makes it easy to clean
• Doesn't require bottle brushes
• Dishwasher-safe

A Note about the Lifespan of Mason Jars

Glass mason jars themselves can be used almost indefinitely. As your baby outgrows bottles, you’ll be able to use these jars for baby food storage, toddler cups, or a million other things around the house.  However, mason jars come with metal lids and collars which are not meant to last a lifetime. These metal two-piece lids are designed to be used for canning, and as such, are not meant to withstand repeated trips through the dishwasher.  Please note that mason jar lids do tend to rust over time. Dry them carefully to extend their life. If you ever need new lids, you can easily replace them at a local grocery store, or anywhere mason jars are sold.

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The Mason Bottle DIY Kit, if you already own mason jars at home. This product includes a set of silicone nipples, a plastic cap, and a silicone sleeve: in other words, everything but the jars!