Dr. Brown's Natural Flow Standard Glass 4 Ounce Bottles (3 Count)
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- Positive-pressure flow for vacuum-free feeding that is similar to breastfeeding
- Reduces feeding problems like colic, spit-up, burping and gas
- Vent system that removes air from milk maintains essential vitamins such as C, A and E
- Helps prevent fluid in the ear
- BPA, PVC, lead and phthalate free
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The Dr. Brown's Natural Flow Glass Baby Bottles offer a wonderful feeding experience with innovative vent technology. Dr Brown's bottles use a patented 2-piece internal vent system for your baby's comfort. This system creates positive-pressure flow for vacuum-free feeding that is similar to breastfeeding. The breast milk or formula flows freely without nipple collapse. As the baby feeds, air is channeled from the nipple collar through the vent system to the back of the bottle. Air never mixes with the breast milk or formula so oxidation is prevented, thereby maintaining essential vitamins such as C, A and E. The vent system eliminates air bubbles in the formula or milk, which helps to reduce feeding problems like colic, spit-up, burping and gas. Dr. Brown's bottles are completely BPA, PVC, lead and phthalate free for your baby's safety. Each bottle comes with 1 level-one silicone nipple and 1 two-piece patented internal vent system. Also includes 1 cleaning brush and instructions.
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All of the bottles have the same vent system, which is a piece of tulip-shaped blue plastic that fitts into a white wheel-shaped vent that sits over the top of the bottle. The nipple sits on top of the white vent piece, and the white threaded cap hold the whole thing together. The bottles come with a standard size 1 nipple--if you're using the long bottles, then the nipples are identical for both 4 and 8 oz, glass and plastic. The wide-neck nipples are much larger and fit both sizef of the wide-neck bottles.
We've used Dr. Brown's exclusively since our son was 6 weeks old, so I can't compare performance directly--I can say that there are very few bubbles in the bottles, and he never had a problem with gas. I wash all of the bottles and the various bits in the dishwasher; we have a Bosch DW that I hate with the passion of a thousand fires, but it has a third drawer at the top that is perfect for nipples and vents, while the blue tubes go in the silverware bucket and the bottles go on the bottom rack.
I only have two issues with the bottles, neither of which are that significant. First, all of the plastic pieces get eventually discolored (and I only wash bottles and baby dishes as a separate load so it's not discoloration from, say, dishes covered with Daddy's marinara sauce.) The nipples start out clear and turn cloudy, and the white wheel-shaped vents turn beige. Second, if you overfill the bottles or if the screw-on threads aren't clean, the bottle may leak. (Keep reading to see what I mean by clean threads.) Therefore, the "best bottle" for your family is going to be the one that works best for your situation.
Glass vs plastic: I love the way that nothing sticks to the side of the glass bottle, and also that they clean impeccably. However, my little one goes to day care and they won't accept glass bottles, so we use the plastic ones for travel and school. Btw, we have to label everything for daycare with our baby's name, so we labeled all of the plastic bottles with a label maker, and the labels are still firmly affixed and look brand new after 4 months of regular dishwashing. The glass ones are heftier than the plastic--the baby has an easier time holding onto the plastic bottles, but that also means that it's much easier for him to give the plastic bottles a jaunty swing when he's almost full, turn it upside down to examine the bottom, or offer it to the dog. He has to focus on holding the glass bottles.
For the wide-neck vs long bottle shape...my husband and I disagree here. He likes the long bottle, I like the wide neck because the formula scoop is almost exactly the same diameter as the top of the long bottle. If I'm not careful then I get powder all over the threads of the bottle and if the top of the bottle is already wet, it turns to sludge and I have to clean off the threads before screwing on the top. With the wider opening, I don't have this problem. (Trust me when I say that at 3 AM, this becomes A Very Annoying Thing.) I also like that with the wider nipple, I can clearly see whether the bottle is tilted properly and if the baby is actually drinking or just faffing around. The baby is neutral on the topic of bottle shape.
And the final question is that of size, which I hadn't really thought about when I was first buying bottles. A newborn with one ounce of milk in an 8 oz bottle looks comical, but pretty soon you may end up having to refill a 4 oz bottle at a single feeding for a voracious 3 month old. If you only want to invest in a single set of bottles, go for the 8 oz ones.
One final thing: all of the bottles come with size 1 nipples. Nipple size refers to the width of the hole at the top, not the nipple itself--if the nipple size is too big for the baby, it gives an interesting "drinking from a firehose" effect. Hospital nurseries use size 1 nipples because they can get a lot of milk into a newborn quickly, but we used Dr. Brown's preemie nipples at home because I was nursing and occasionally supplementing. We had absolutely zero problems with nipple confusion until we switched to size 1 nipples on the bottles, and then the baby vastly preferred the bottle because it was more efficient for him. (I am of the opinion that nipple confusion is better described as nipple preference or possibly nipple rejection.) So my recommendation to new moms who choose to/have to/are panicking about/want to keep their options open/need to include other caregivers in using bottles is to make sure you start with the smallest nipple size and then work up from there.