# Dr. Brown's vs Comotomo Bottles (2026): Vents, Nipples, Materials and Cleaning > Dr. Brown's Options+ vs Comotomo Gen 2 bottles on venting, nipple shape and flow levels, plastic, glass or silicone, and how many parts you wash, from the makers. - Source: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles - Publisher: NurseryProof (https://nurseryproof.com) - Published: 2026-09-28 - Category: feeding - Tags: baby bottles, dr. brown's, comotomo, comparison, anti-colic, bottle feeding - Method: picks chosen from Amazon listings and brand specs; not hands-on tested; current Amazon prices are on the page; content checked 2026-09-28. - Quick answer: Choose Dr. Brown's Options+ if gas and spit-up are your main worry: its internal vent tube is the brand's anti-colic design, it comes in plastic or glass, and it has six nipple levels. Choose Comotomo Gen 2 if you want fewer parts and milk that only touches silicone: the vents are in the nipple and the wide neck cleans by hand without special brushes. ## Key takeaways - Venting: Dr. Brown's uses a removable internal vent system; Comotomo has two vents built into the nipple. - Flow levels: Dr. Brown's lists Preemie, Levels 1-4 and a Y-cut; Comotomo lists Slow (1 hole), Medium (2), Fast (3) and Variable (Y). - Materials: Dr. Brown's in BPA-free plastic or glass with silicone nipples; Comotomo is silicone throughout, so milk "only touches food-contact grade silicone, never plastic." - Both are top-rack dishwasher safe and can be sterilized or boiled, per the makers. - The CDC: sanitize feeding items daily if your baby is under 2 months, was born premature or has a weakened immune system. ## Products (chosen from listings, not tested) 1. **Dr. Brown's Anti-Colic Options+ Wide-Neck Bottles, 5 oz (4-Pack)** (details: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07MF2TDFX) — The Dr. Brown's to start with for a newborn. - Pros: Internal vent system Dr. Brown's says is clinically proven to reduce colic, spit-up, burping and gas; Level 1 slow-flow nipple; the vent can be removed later without changing bottles; Top-rack dishwasher, sterilizer and boiling-water safe; BPA free - Cons: More parts to wash with the vent in place 2. **Dr. Brown's Anti-Colic Options+ Wide-Neck Glass Bottles, 5 oz (3-Pack)** (details: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07M6QQP9Z) — For parents who want glass with the Dr. Brown's vent. - Pros: Same vent system and Level 1 nipple in glass; Top-rack dishwasher, sterilizer and boiling-water safe; Uses the same wide-neck nipples as the plastic version - Cons: Glass is heavier and can break 3. **Dr. Brown's Anti-Colic Options+ Narrow Bottles, 8 oz (2-Pack)** (details: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B01845QH7M) — The Options+ in the classic narrow shape, sized for later months. - Pros: The narrow-neck version of the same vent system; Silicone nipple with a consistent flow, per the listing; Larger 8 oz size for bigger feeds - Cons: Narrow nipples do not fit the wide-neck bottles 4. **Comotomo Gen 2 Silicone Baby Bottle, 5 oz (2-Pack)** (details: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0G6N65XVL) — The all-silicone bottle with the fewest parts to wash. - Pros: Milk only touches food-contact grade silicone, never plastic, per Comotomo; Slow Flow nipple for 0 to 3 months with dual anti-colic vents; Wide neck cleans without special brushes; base 40% wider than version 1 - Cons: Only two bottles in the pack 5. **Comotomo Gen 2 Silicone Baby Bottle, 8 oz (2-Pack)** (details: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0GCG98JCL) — The Comotomo for bigger feeds after the first months. - Pros: Comes with the Medium Flow nipple, per the listing; Flow level printed on the nipple; Dishwasher safe; sold by the Comotomo store - Cons: Medium flow is for 3 months and up, per Comotomo; start younger babies on the 5 oz with Slow Flow This comparison is for parents choosing between Dr. Brown's Options+ and Comotomo Gen 2 bottles. Choose Dr. Brown's if gas and spit-up are the worry and you want plastic or glass: its internal vent system is the heart of the brand's anti-colic design. Choose Comotomo if you want milk to touch only silicone and fewer parts to wash, since its vents are built into the nipple. **How we compared:** facts come from [Dr. Brown's Options+ wide-neck page](https://drbrownsbaby.com/products/dr-browns-anti-colic-options-wide-neck-baby-bottle-5oz-150ml), [Dr. Brown's nipple level guide](https://drbrownsbaby.com/blogs/articles/dr-browns-nipple-level-guide), [Comotomo's bottle page](https://comotomo.com/pages/detailed-baby-bottle), [Comotomo's FAQ](https://comotomo.com/pages/faq-1) and the Amazon listings, sold by Amazon.com (Dr. Brown's) and the Comotomo store, all in stock in September 2026. Feeding and cleaning guidance is from the CDC. We did not test the bottles, and no bottle suits every baby. ## The two side by side | | Dr. Brown's Options+ | Comotomo Gen 2 | |---|---|---| | Amazon price | [Wide-neck 5 oz, 4-pack](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07MF2TDFX) see the current Amazon price on the page; [Glass 5 oz, 3-pack](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07M6QQP9Z) see the current Amazon price on the page; [Narrow 8 oz, 2-pack](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B01845QH7M) see the current Amazon price on the page | [5 oz, 2-pack](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0G6N65XVL) see the current Amazon price on the page; [8 oz, 2-pack](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0GCG98JCL) see the current Amazon price on the page | | Venting | Internal vent system, removable later | Dual vents built into the nipple | | Nipple shape | "Breast-like nipple shape" | "Truly wide mound with a breast-like design" | | Flow levels | Preemie, Level 1 (0m+), 2 (3m+), 3 (6m+), 4 (9m+), Y-cut (9m+) | Slow, 1 hole (0–3 mo); Medium, 2 holes (3+ mo); Fast, 3 holes (6+ mo); Variable, Y (6+ mo) | | Nipple in the box | Level 1 | Slow Flow (5 oz); Medium Flow (8 oz) | | Bottle material | BPA-free plastic, or glass | Silicone | | Neck | Wide-neck and narrow versions | Wide neck | | Parts | Bottle and nipple, plus the internal vent system | Four: cap, nipple, ring, bottle | | Dishwasher | Top rack only | Top rack | | Sterilizing | Electric and microwave sterilizers, boiling water | Sterilizers, boiling water, microwave | ## Venting: tube or nipple This is the real difference. **Dr. Brown's** vents through an internal system that sits inside the bottle. Dr. Brown's says it is "clinically proven to reduce colic and helps reduce spit-up, burping, and gas." That is the company's claim. The bottle "works best with the internal vent system in place but can be removed as baby's feeding develops," and Dr. Brown's says its nipples "feature their own venting system" once the vent is out. **Comotomo** puts "dual anti-colic vents" in the nipple itself. Its listing says the vent system "helps reduce air intake." There is no separate insert to assemble. Neither brand's anti-colic claim is a regulator's finding. What a bottle's vent changes most, day to day, is how many parts you wash. ## Nipple shape and flow Both brands describe their nipples as shaped like a breast. Dr. Brown's says its "breast-like nipple shape encourages a proper latch." Comotomo describes a "truly wide mound with a breast-like design" and a "softer, naturally tapered silicone nipple." Dr. Brown's offers more steps: - **Preemie (0 months+):** the slowest, which Dr. Brown's says is "great for breastfed babies when switching between bottle and breast." - **Level 1 (0 months+):** included with almost every bottle. - **Levels 2, 3 and 4:** 3, 6 and 9 months and up. - **Y-Cut (9 months+):** for thickened milk, if your pediatrician recommends it. Comotomo lists four: Slow Flow with one hole for 0–3 months, Medium with two holes for 3+ months, Fast with three for 6+ months and Variable, with a Y cut, for 6+ months. The age labels are guides. Dr. Brown's says "there is no right time to change your baby's nipple level" and that "some babies are content using Level 1 throughout their feeding days." How you hold the bottle matters too. The CDC's [bottle-feeding guidance](https://www.cdc.gov/infant-toddler-nutrition/bottle-feeding/index.html) says to "position the bottle at an angle rather than straight up and down so the milk only comes out when your baby sucks," and to "let your baby take breaks from drinking when they seem to want them." If you are also breastfeeding, our [best bottles for breastfed babies](https://nurseryproof.com/feeding/best-bottles-for-breastfed-babies) compares seven bottles on exactly this. ## Materials **Comotomo** is silicone throughout the parts milk touches: the listing says milk "only touches food-contact grade silicone, never plastic," and the bottle body is "soft, squeezable silicone." Comotomo's FAQ says its silicone "is free of BPA and other toxic chemicals." **Dr. Brown's** Options+ comes in BPA-free plastic or glass, with a "super-soft 100% silicone nipple." Glass is heavier and can break, but some parents prefer it. ## Cleaning: parts, brushes and sterilizing Both are dishwasher safe on the top rack, per the makers. The difference is parts. Comotomo lists four: cap, nipple, ring and bottle, and its listing says the wide neck cleans "with no special brushes required." A Dr. Brown's Options+ adds its internal vent system on top of the bottle and nipple, until you take the vent out. Comotomo's FAQ has one vent tip: if milk leaks from the vents, knead "the vent tips in warm water," and it suggests replacing nipples "approximately every 3 months" and bottles "every 6 months." Whichever you choose, the CDC's [guide to cleaning infant feeding items](https://www.cdc.gov/hygiene/about/clean-sanitize-store-infant-feeding-items.html) applies: - "Separate all bottle parts (for example, bottles, nipples, caps, rings, valves)." - If using a dishwasher, "place small items inside a closed-top basket or mesh laundry bag." - "Sanitize items for extra germ removal or daily if your baby is under 2 months old, was born premature, or has a weakened immune system." **Pro tip:** a vent system means more small parts to lose in the dishwasher, so a closed basket matters more with Dr. Brown's. Our [bottle sterilizers and drying racks](https://nurseryproof.com/feeding/bottle-sterilizers-and-drying-racks) covers the sanitizing step. ## Which to buy - **Gas and spit-up are the worry, or you want glass:** Dr. Brown's Options+, [wide-neck plastic](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07MF2TDFX) or [wide-neck glass](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B07M6QQP9Z). - **Fewest parts, all silicone:** the [Comotomo Gen 2 5 oz](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0G6N65XVL). - **Bigger feeds later:** the [Dr. Brown's narrow 8 oz](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B01845QH7M) or the [Comotomo 8 oz](https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles#product-B0GCG98JCL). Buy one small pack first. Babies have their own preferences, and it is easier to switch after one pack than after ten bottles. For warming feeds, see our [best bottle warmers](https://nurseryproof.com/feeding/best-bottle-warmers). ## Frequently Asked Questions ### Which bottle has fewer parts to clean? Comotomo. Its vents are in the nipple, so there is no separate insert; Dr. Brown's Options+ adds an internal vent system, which Dr. Brown's says can be removed as your baby's feeding develops. ### Can I use Comotomo nipples on Dr. Brown's bottles? Neither maker says so. Dr. Brown's says its wide-neck nipples fit "all Dr. Brown's Anti-colic Options+ Wide-Neck bottles," and narrow nipples fit narrow bottles. Use each brand's own nipples. ### What flow should a newborn start on? The slowest the brand makes: Dr. Brown's Preemie or Level 1, or Comotomo's Slow Flow, which comes with the 5 oz bottle. Move up when your baby's feeds call for it, not only by age. ### How often should I sterilize bottles? The CDC says to sanitize feeding items daily if your baby is under 2 months, was born premature or has a weakened immune system; otherwise, sanitizing is for extra germ removal after cleaning. --- *NurseryProof is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This guide summarizes public guidance and is not medical advice; if your baby has trouble feeding, talk with your pediatrician.* ## Sources - drbrownsbaby.com: [Dr. Brown's Options+ wide-neck page](https://drbrownsbaby.com/products/dr-browns-anti-colic-options-wide-neck-baby-bottle-5oz-150ml) - drbrownsbaby.com: [Dr. Brown's nipple level guide](https://drbrownsbaby.com/blogs/articles/dr-browns-nipple-level-guide) - comotomo.com: [Comotomo's bottle page](https://comotomo.com/pages/detailed-baby-bottle) - comotomo.com: [Comotomo's FAQ](https://comotomo.com/pages/faq-1) - Centers for Disease Control and Prevention: [INDEX page](https://www.cdc.gov/infant-toddler-nutrition/bottle-feeding/index.html) - Centers for Disease Control and Prevention: [Clean sanitize store infant feeding items](https://www.cdc.gov/hygiene/about/clean-sanitize-store-infant-feeding-items.html) --- Last updated: 2026-09-28 Canonical URL: https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles How to cite: "Dr. Brown's vs Comotomo Bottles (2026): Vents, Nipples, Materials and Cleaning", NurseryProof, https://nurseryproof.com/feeding/dr-browns-vs-comotomo-bottles (checked 2026-09-28). Disclosure: as an Amazon Associate NurseryProof earns from qualifying purchases. Safety information summarizes public guidance and is not medical advice.