NUK Simply Natural Glass Review
Pros: Glass material, Clear volume markings, Easy to use
Cons: Single vent in nipple, No protective sleeve
Manufacturer: NUK
The Skinny
Compare to Similar Products
 This Product
NUK Simply Natural Glass | |||||
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| Awards |  |  |  | | |
| Price | $10.00 List $8.33 each at Amazon | $13.00 List $11.50 each at Amazon | $10.00 List $6.62 each at Amazon | $11.00 List $6.33 each at Amazon | $5.00 List $3.10 each at Amazon |
Overall Score  |
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| Star Rating | |||||
| Pros | Glass material, Clear volume markings, Easy to use | Healthy materials, breastlike nipple, lightweight | Easy to clean, Healthy materials, Innovative anti-colic system | Milk warms quickly, easy for babies to hold, can pump into bottle | Glass, Affordable, Easy to Use |
| Cons | Single vent in nipple, No protective sleeve | Falls over easily, slow warm time | Thin Silicone, Hard to read volume markings | Plastic, many parts to clean, difficult to fill | Not as Strong as Borosilicate Glass, Narrow Mouth, No Sleeve |
| Bottom Line | A good basic glass bottle that won't break the bank | A good durable bottle that has a breast-like feel | Healthy alternative to plastic drop-in liners; good for baby and the environment | A uniquely shaped bottle that is easy for babies to hold but more difficult for parents to use | Healthy alternative to plastic without breaking the bank |
| Rating Categories | NUK Simply Natural... | Comotomo | Boon Nursh | Nanobebe | Evenflo Vented + Glass |
| Leakage (30%) | |||||
| Nipple (25%) | |||||
| Ease-of-Cleaning (20%) | |||||
| Eco-Health (15%) | |||||
| Ease-of-Use (10%) | |||||
| Specs | NUK Simply Natural... | Comotomo | Boon Nursh | Nanobebe | Evenflo Vented + Glass |
| Material | Borosilicate Glass | Silicone | Silicone and Plastic | BPA-free Plastic | Tempered Glass |
| Available Sizes | 4, 8 oz | 5, 8 oz | 4, 8 oz | 5, 8 oz | 4, 8 oz |
| Weight | 5.7 oz | 3.6 oz | 3.2 oz | 2.3 oz | 4.9 oz |
| Bottle Mouth | Wide | Wide | Wide | Narrow | Narrow |
| Nipple Pinch Test | Medium | Very Soft | Very Firm | Soft | Medium |
| Anti-Colic Feature | Vented nipple | Vented nipple | Collapsible silicone liner | Vented nipple | Vented nipple |
| Cleaning Method | Dishwasher safe | Top rack dishwasher safe | Dishwasher safe | Top rack dishwasher safe | Top rack dishwasher safe |
Our Analysis and Test Results
NUK has been in the baby business for over 50 years and makes a wide variety of children's products for those with little ones running around. Their Simply Natural Glass bottle is a perfect combination of quality and affordability, earning it a place in our review.
Performance Comparison
Likes
The primary advantage of this bottle is the glass body. The borosilicate glass makes the NUK extra durable and resistant to thermal shock. The volume markings are white numbers painted on the outside of the bottle that we thought would be difficult to read against the background of white milk, but it turned out not to be a problem as there is enough contrast between the two whites to see the numbers easily.
The nipple on this bottle is another high point with many features that are designed to give it a more breast-like feel. It has an extra-wide nipple mound with softer than average silicone. The orthodontic shape is skinny in the middle and larger and slightly flattened at the top. Depending on the flow rate of the nipple, you either get 3, 6, or 9 holes in the tip, rather than one hole that gets larger or smaller. All of this combined makes for a more familiar feeding experience for babies who transition between breast and bottle.
With only one plastic part on the bottle, the contents have little to no contact with potentially leaching chemicals. The wide-mouth opening makes it easy to clean and transfer liquids, but you will still probably need a bottle brush for the 8 oz version and will need a nipple brush for either one.
Dislikes
We were disappointed that there is no protective sleeve available for this bottle. Drops and bumps are inevitable, and we think many parents would appreciate an extra layer of protection for a glass baby bottle.
We also don't like the one vent hole in the nipple, that is meant to be positioned directly under the baby's nose. This, in combination with the asymmetrical shape of the nipple, means that you must twist the bottle to the correct position for every feeding instead of just popping it in. If the nipple is positioned incorrectly, it may feel awkward for the baby, and the nipple vent has a higher chance of being blocked, causing nipple collapse or feeding frustration.
Conclusion
Overall, we like the NUK Simply Natural Glass bottle for its combination of simplicity, functionality, and affordability. We think it could be a perfect solution for babies who are particular about nipple shape. Glass offers a healthy alternative for those trying to do what's best for the baby and the environment while staying within budget. If you are willing to take extra care handling this bottle, it could be one that keeps mom, baby, and budget satisfied.
— Juliet Spurrier, MD, Abriah Wofford
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BabyGearLab was founded by a Pediatrician Mom with a mission to provide a reliable, independent, source of information to new parents. Our experts have tested thousands of baby and kids products to share key performance, health, and safety findings. We spend tens of thousands of dollars crash testing car seats to inform our ratings. And, we combine our review work with gobs of expert parenting advice. To assure complete independence, we buy all the products we test ourselves. No sponsored content. No ads. Just real, honest, side-by-side testing by people who care.
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