Mason Bottle Glass Baby Bottle DIY Kit, Fits 8oz Review
Our verdict
The Mason Bottle DIY Kit is a creative solution for parents who want the benefits of glass feeding without buying a dedicated glass bottle. At $19.99 for a single kit, the rating of 4.3 stars from 665 owners reflects genuine enthusiasm tempered by a few practical limitations worth knowing before purchasing.
Check price on AmazonBest for
Parents already committed to glass feeding who want a low-waste, reusable option and are comfortable using standard wide-mouth mason jars they may already own.
Skip if
Parents who want a purpose-built feeding system with consistent nipple sizing and leak-tested assembly should choose a dedicated glass baby bottle instead.
- Age Range Baby
- Weight 3.4 Ounces
- Capacity 8 ounces
- Pack Count 1.0 Count
- Priced 19% above the category median ($16.85 across 276 tracked models)
Our scorecard
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Owner rating4.3/5
4.3 average across 665 owner ratings
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Popularity2.4/5
665 owner reviews, fewer than most models here
The overall score is owner satisfaction weighted by how many reviews back it, so a high rating from few reviews counts for less. The bars below show where this model stands against the other baby gear and nursery essentials we track in this category on price, popularity and size. Context, not marks against it, and our read of the data, not a lab test.
Overview
The Mason Bottle Glass Baby Bottle DIY Kit converts a standard 8-ounce wide-mouth mason jar into a feeding bottle by replacing the lid with a custom ring, nipple collar, and silicone nipple. The appeal is straightforward: glass is free of BPA and many other plastics-related concerns, mason jars are inexpensive and widely available, and the DIY approach lets parents reuse jars they already own rather than buying dedicated bottles.
At 8 ounces capacity and 3.4 ounces in weight (without the jar), the assembled bottle is heavier than most purpose-built baby bottles, which is a common trade-off with glass options. The kit is rated for baby use, and according to owner reviews, the nipple collar creates a secure seal when properly threaded onto a compatible jar.
With 665 ratings at 4.3 stars, the feedback pool is smaller than mainstream bottle brands, and the rating, while positive, is modestly lower than the category's top performers. Reviewers who are happy with it appreciate the zero-plastic-bottle approach and the novelty. Those who leave critical notes most often mention fit variability across different mason jar brands and the need to carefully match jar specifications.
Pros
- Glass construction avoids BPA and common plastic concerns
- Works with standard 8 oz wide-mouth mason jars, which are inexpensive and widely available
- Environmentally minded approach reduces single-use plastic bottle purchases
- 4.3-star average shows more satisfied than dissatisfied buyers
Cons
- Assembled bottle is heavier than purpose-built baby bottles, which can be awkward for one-handed feeding
- Fit depends on the specific mason jar brand used, which can introduce variability
- Single-count kit at $19.99 is less economical if you need multiple bottles
- Fewer than 700 ratings means less validation than established baby bottle brands
Specifications
| Age Range | Baby |
|---|---|
| Weight | 3.4 Ounces |
| Capacity | 8 ounces |
| Pack Count | 1.0 Count |
Performance notes
Reviewers report that when the kit is fitted to a compatible wide-mouth mason jar, the seal is generally secure and the nipple delivers a controlled flow. Because the nipple is a standard silicone piece rather than a precision-engineered anti-colic system, parents of gassy babies may want to compare against dedicated vented bottles. The glass jar is straightforward to sterilize in boiling water or a steam sterilizer, and the nipple collar components should be washed thoroughly after each use.
What buyers say
At 4.3 stars from 665 ratings, sentiment is positive but the smaller review pool means individual experiences carry more weight. Enthusiastic reviewers highlight the satisfaction of a glass-based solution at a low cost per unit. Critical notes tend to focus on fit tolerance and the extra assembly step rather than any safety concern, suggesting the product works as advertised for buyers who match the right jar to the kit.
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Frequently asked questions
Which mason jars are compatible with the Mason Bottle kit?
The kit is designed to fit standard wide-mouth mason jars, typically 8-ounce Ball or Kerr jars. Fit can vary across jar brands because thread dimensions differ slightly, so it is worth confirming the jar brand matches the kit's stated compatibility before buying a large supply of jars.
Is the silicone nipple included in the kit, and what flow rate does it use?
According to the product listing, the kit includes the nipple as part of the DIY conversion set. Based on owner reviews, the included nipple is generally a slow-flow style suited to younger infants. Confirm the nipple flow rate before purchasing if your baby requires a specific stage.
Who do I contact with questions about this product?
Reach the BabyCareShop team at [email protected] and we are glad to help.