Quick Facts
Kit to convert regular mouth mason jars and metal rings into non-toxic, easy-to-clean glass baby bottles.
Best for
Parents who want to convert mason jars into baby bottles
Key detail
Glass
Consider if
Consider other options if you do not own regular mouth jars
Shipping
Free US shipping over $100, 30-day returns
Turn Mason Jars Into Baby Bottles
Everything you need to convert regular mouth mason jars into easy to clean, non-toxic glass baby bottles, except the jars.
Turn Mason Jars Into Baby Bottles
Toxin-Free Glass Feeding
Toxin-Free Glass Feeding

Use glass you already own for feeding, so you avoid extra single-use plastics. The glass jar plus our adapter parts are easy to rinse and keep clear of stains and odors, giving you simple, long-lasting peace of mind.

Breast-Like Nipple Shape
Breast-Like Nipple Shape

The nipple is shaped to encourage a natural latch, helping with breast to bottle transitions. A built-in ventilation approach helps milk flow smoothly, reducing air bubbles and making feeds calmer for many babies.

Simple, Money-Saving Kit
Simple, Money-Saving Kit

The DIY kit gives you the parts needed to convert regular mouth mason jars into bottles, so you can reuse jars you already have. That means less clutter, fewer purchases, and fewer bottles in the drawer.

Ventilated Design
Built-in ventilation helps reduce air bubbles, promoting smoother feeding and less fussing.
Durable Glass
Use regular mouth mason jars for glass that does not absorb odors or stains.
Easy to Clean
Parts disassemble easily for hand washing or quick sterilizing, saving time in your routine.
US Support and Returns
Ships from a US warehouse, free US shipping over $100, and 30-day returns with human support.
How to Choose the Right Bottle Kit

Picking a bottle system is about fit, cleaning, and how it supports feeding goals.

  1. Jar Compatibility: Look for regular mouth mason jars to ensure the adapter pieces fit. If you already have jars, you can often reuse them instead of buying new bottles.
  2. Nipple Shape and Flow: Choose a slower flow when starting to avoid fast, frustrated feeds. Move up a flow only when baby shows they can handle faster milk without choking or gulping.
  3. Cleaning and Care: Pick a system with simple parts that disassemble fully, so you can scrub with a bottle brush or run through your preferred sterilizing method.
  4. Breastfeeding Support: If you are combining breast and bottle, choose a nipple shaped to encourage a natural latch, and offer bottles at times when baby is calm and receptive.
  5. Budget and Storage: Reusing mason jars can lower cost and reduce clutter. Consider how you will store assembled bottles and any extra nipples or adapters you keep on hand.
Frequently Asked Questions
Do mason jars come with the kit?

No, jars are not included. The kit contains the adapter parts and nipples you need to convert regular mouth mason jars you already own into bottles.

Which nipple flow should I use first?

Start with a slow flow and watch your baby for signs they need a faster flow, such as finishing feeds quickly or showing frustration during feeding. Move up one flow at a time as needed.

Is this system safe and non-toxic?

Yes, the idea is to use glass jars and a simple adapter system, avoiding many plastics. The kit is described as non-toxic and supports a glass-based feeding option.

How do I clean and sterilize the parts?

Disassemble the nipple and adapter, wash with warm soapy water using a bottle brush, rinse well, and air dry. You can also use your preferred steam sterilizer or boiling method if you follow that device's guidance.

Can I use breastmilk storage jars with this kit?

Yes, any regular mouth mason jar that fits the adapter can be used, including jars you already use for breastmilk storage.

What are your shipping and return policies?

We ship from a US warehouse, offer free US shipping on orders over $100, and accept returns within 30 days. If you need help, our human customer support team can assist with tracking and returns.

From the Moogco Baby Journal
The Essential Guide to the Best Breast Milk Storage
By Eda Ulger , Moogco Baby Editor and mom of two · Updated May 2026 Storing breast milk safely is all about your timeline. For short-term use, clean bottles or bags in the refrigerator are perfect for up to 4...
Read the guide →
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