Dr. Brown’s Natural Flow® Anti-Colic Options+™ Wide-Neck Baby Bottle with Level 1 Slow Flow Nipple, 9 oz/270 mL | live price, prepared checkout

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Checked facts

Each fact below was checked against the source it cites before it was published. Each carries that source's link and the time RoboTrunk read it. 59 checked facts, checked 2026-10-11T19:07:25.786Z. Research depth: trimmed read. Deep read: the store's own data and 10 outside pages (the store's own product page; maker page; manual; spec sheet; blog; review; regulator recall search (CPSC (United States)); regulator recall search (Health Canada)), each read in full by RoboTrunk and trimmed to its main content, then written up and checked. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read. Recall status was checked directly with CPSC (United States), Health Canada: A CPSC recall search for Dr. Brown's / Options+ Wide-Neck Glass Baby Bottle 9 oz WB91700 was among the sources but returned no usable record (it returned an error). The one Health Canada record mentioning Dr. Brown's concerns Lovey Pacifier & Teether Holders, a different product, so no recall applies to this exact bottle.

• identity: The listed product is Dr. Brown's Natural Flow Anti-Colic Options+ Wide-Neck baby bottle with Level 1 slow flow nipple, 9 oz/270 mL, SKU WB91700, from Dr. Brown's.. Source: https://4f71f1-4.myshopify.com/products.json (listing), read 2026-10-11T07:16:33.630Z.
• nipple design: The breast-like nipple shape is designed to encourage a proper latch for a more natural bottle-feeding experience.. Source: https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz (guide), read 2026-10-11T18:50:55.101Z.
• vent benefits: The maker states the fully-vented bottle is clinically proven to reduce colic, better preserve nutrients, aid digestion for sleep, and provide a flow rate that supports breastfeeding.. Source: https://drbrownsbaby.com/collections/baby-bottles/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz?bvroute=Reviews%2FshowHelpfulPositive (guide), read 2026-10-11T18:51:10.057Z.
• nipple and vent: Dr. Brown's states its silicone nipple, together with the anti-colic internal vent system, is clinically proven to reduce colic.. Source: https://drbrownsbaby.com/pages/instructions (manual), read 2026-10-11T18:51:25.312Z.
• glass material: The catalogue says the glass material is linked to easier cleaning and deeper hygiene, and that the bottle does not absorb odours, flavours or colours from food.. Source: https://drbrowns.pe/wp-content/uploads/2025/01/Catalogo-Minorista-11.pdf (manual), read 2026-10-11T18:51:33.079Z.
• overall verdict: In a three-way comparison of glass bottles the site rated this Dr. Brown's wide-neck glass bottle 4 out of 5, third of the three, and said the gap to the leaders was handling rather than feeding.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• anti-colic mechanism: Reports the internal vent system helps prevent air bubbles being swallowed and removes the vacuum effect, which helps decrease spit-up, burping and gas.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• brand comparison: After trying three brands the baby preferred the Options+ Wide Neck bottles most.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• colic relief: Several parents of this 270 ml glass wide-neck bottle report it helped with colic and spit-up, with calmer babies and less air swallowed.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• anti-colic claim: The internal vent system is described as clinically proven to reduce colic and to help reduce spit-up, burping and gas.. Source: https://4f71f1-4.myshopify.com/products.json (listing), read 2026-10-11T07:16:33.630Z.
• nipple flow consistency: Each Dr. Brown's bottle nipple is engineered so flow rates do not change between same-level nipples.. Source: https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz (guide), read 2026-10-11T18:50:55.101Z.
• glass bottle sleeve: A 100% silicone bottle sleeve is sold to protect Dr. Brown's Options+ glass bottles during use, warming and dishwashing.. Source: https://drbrownsbaby.com/pages/instructions (manual), read 2026-10-11T18:51:25.312Z.
• SKU: The 9 oz glass Options+ wide-neck bottle carries the code WB91700.. Source: https://drbrowns.pe/wp-content/uploads/2025/01/Catalogo-Minorista-11.pdf (manual), read 2026-10-11T18:51:33.079Z.
• leaking: The bottle leaks if it is shaken or tipped upside down, which a sealed bottle would not do.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• user experience: One user reported very little spit-up, gas or colic and credited the anti-colic system, and liked the controlled flow that let the baby feed at their own pace.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• wide neck hold: The wide neck shape made it easiest for the baby to help hold the bottle.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• heat retention: Parents report the glass keeps milk warm longer and that water heats up faster in it in the warmer.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• recommendation: The bottle is marketed as the number one pediatrician-recommended baby bottle in the U.S.. Source: https://4f71f1-4.myshopify.com/products.json (listing), read 2026-10-11T07:16:33.630Z.
• acceptance study: The maker cites a study of 884 babies in which 93% accepted the Options+ Wide-Neck Nipple.. Source: https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz (guide), read 2026-10-11T18:50:55.101Z.
• vent removal after 6 months: The catalogue says the vent system can be removed after 6 months.. Source: https://drbrowns.pe/wp-content/uploads/2025/01/Catalogo-Minorista-11.pdf (manual), read 2026-10-11T18:51:33.079Z.
• cap: The cap fights you at both ends of a feed and is worse one-handed.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• leaking fix: Leaks noticed were fixed by not overfilling the bottle and making sure the cap was twisted on tightly.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• latch and nipple confusion: The breast-like nipple shape gave a seamless switch between breast and bottle during the early months, with no nipple confusion while combination feeding.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• weight: Parents repeatedly say the glass bottle is heavy, too heavy for a baby to hold alone and noticeable even for adults.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• nipple shape: The nipple has a breast-like shape intended to encourage a proper latch and give a consistent flow so babies feed at their own pace.. Source: https://4f71f1-4.myshopify.com/products.json (listing), read 2026-10-11T07:16:33.630Z.
• vent system removable: The internal vent system can be removed when the parent feels it is time, without switching to a different bottle.. Source: https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz (guide), read 2026-10-11T18:50:55.101Z.
• health professional recommendation: The catalogue states 9 out of 10 health professionals recommend Dr. Brown's bottles for colic symptoms.. Source: https://drbrowns.pe/wp-content/uploads/2025/01/Catalogo-Minorista-11.pdf (manual), read 2026-10-11T18:51:33.079Z.
• vent part: The vent insert has to come out, be washed and dried at every feed and is the part most easily lost.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• leaks reported: Notes that some users report leaking with the bottles, while plenty of users do not.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• spit-up: Noticed a significant difference in spit-up after starting to use the Options+ bottles.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• cleaning: Several parents find it harder to clean because of the multiple parts and the vent, and say milk residue gets everywhere.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• nipple venting: When the internal vent is removed, the nipples have their own venting system giving an experience similar to most nipple-vented bottles.. Source: https://4f71f1-4.myshopify.com/products/dr-browns-options-wide-neck-glass-baby-bottle-9oz (guide), read 2026-10-11T18:50:55.101Z.
• wide-neck colic testing: The catalogue says the wide-neck anti-colic bottles are clinically proven to reduce colic, the same as the narrow-neck ones.. Source: https://drbrowns.pe/wp-content/uploads/2025/01/Catalogo-Minorista-11.pdf (manual), read 2026-10-11T18:51:33.079Z.
• vent removable: Once the baby has outgrown the stage where swallowed air is a daily problem the vent lifts out and the same bottles keep working, so no second set is needed.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• cleaning: Cleaning the anti-colic vent system means disassembling it and washing with different brush sizes.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• vent removal timing: The two-piece vent system is removable and was taken out at around eight months once feeding had matured, with no need to change bottle.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• size for small babies: Some parents say the 270 ml size is too big for a small baby or for top-up feeds, and note a smaller 150 ml glass version exists.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• nipple flow levels: Level 2 on this bottle fed noticeably faster than Level 2 on a Philips Avent nipple, so flow levels should not be assumed to carry across brands.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• age range: The Options+ anti-colic bottles are recommended for newborns to 12 months of age.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• leak prevention: Leaking was not an issue once used properly: do not fill above the max line, screw the top on tightly but not very tight, and use the white disc that comes with the bottle when travelling.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• breakage: One parent reported the bottle survived being dropped without breaking.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• care instructions: Reports the maker rates the glass as heat and thermal shock resistant and safe for the top rack of the dishwasher, electric and microwave sterilizers, and boiling water.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• dishwasher: Both the glass and plastic Options+ anti-colic bottles are dishwasher top-rack safe.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• dishwasher: The vent parts get tedious to hand wash, so being able to put them in the dishwasher is appreciated.. Source: https://thestyledpress.com/dr-browns-options-bottle-review/ (blog, The Styled Press, published 2019-09-12), read 2026-10-11T18:51:38.137Z.
• anti-colic doubts: One parent could not work out how the anti-colic system functions and said it did not stop their baby swallowing air.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• size and nipple: Describes the version reviewed as a 9 oz glass body with a breast-shaped Level 1 slow-flow nipple for newborns, with faster levels sold separately.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• first use care: Advises washing the bottle and all parts and boiling the nipple for five minutes before first use.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• thread: One parent dislikes the screw thread on the bottle, saying it is annoyingly long.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• glass trade-offs: Glass is heavier, costs more and breaks; the site's own split was glass at home and plastic in the diaper bag.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• breast pump fit: A parent reported the bottles fit Medela pump tops so you can pump straight into the bottle, and that the nipples also fit Medela bottles.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• nipple: Parents say the nipple keeps its shape, is soft silicone shaped like a breast, and was accepted quickly without collapsing into the bottle.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• wide neck: The wide neck fills, brushes out and dries properly, and fits most warmers without an adapter.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• mould prevention: Advises rinsing the internal vent soon after feeding and letting all parts air dry fully before storing, to stop milk drying in the parts and mould building up.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• glass hygiene: Parents choose the glass version for hygiene and find the glass is thick.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• air handling: The internal vent carries air past the milk to the top so air goes into the bottle rather than into the baby.. Source: https://thepracticalnursery.com/feeding-gear/best-glass-bottles-for-breastfed-babies/ (blog, The Practical Nursery, published 2026-08-09), read 2026-10-11T18:51:35.041Z.
• nipple level guidance: Nipple levels are tied to age ranges but every baby differs; signs it is time to move up include taking longer to finish, fussiness during feeding, or falling asleep while feeding.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• leak-proofing while mixing: One parent values the closure that keeps milk out of the nipple when the bottle is shaken to mix.. Source: https://www.modrykonik.sk/recenzie/dojcenska-antikolikova-sklenena-flasa-dr-brown-s-options-wide-neck-270-ml/ (review), read 2026-10-11T18:51:52.861Z.
• feeding position: Advises holding the baby more upright, keeping liquid covering the nipple, and keeping the hole at the end of the reservoir tube uncovered by liquid.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.
• wide versus narrow: Says wide-neck bottles offer a wider, sloped breast-shaped nipple and may suit breastfed babies or those with a wider latch, while narrow bottles are the ones most used in hospitals and NICUs.. Source: https://babyfoode.com/blog/dr-browns-options-bottle-review/ (blog, Baby Foode, published 2022-04-29), read 2026-10-11T18:51:37.544Z.

The full evidence pack, with every citation, source and gap.

Questions we researched but could not confirm

Every fact above is cited. To find them we read the store listing, the maker's page, the manual, the spec sheet, blogs, owner reviews and the recall records of CPSC (United States) and Health Canada and searched for regulator recall notices, owner forums and video reviews. We also chased the questions below across those sources and found no reliable answer, so you know exactly where the evidence ends and never have to guess.

• What are the bottle's exact height and diameter?
• How much does the empty 9 oz glass bottle weigh?
• Does the 9 oz bottle fit standard cup holders and bottle warmers?
• What age range is the Level 1 nipple intended for?
• Is this exact 9 oz glass bottle BPA-free, and where is that stated?
• What is the maximum temperature this bottle can be heated or sterilized at?
• Does the bottle come with a travel cap or storage disc?
• Are replacement nipples and vent parts sold separately for this 9 oz bottle?
• What warranty does this bottle carry?
• Which parts of this bottle come into contact with the milk?
• Is the bottle dishwasher safe on the top rack only?
• Is it compatible with Dr. Brown's wide-neck handles and silicone sleeves?
• Can the glass bottle go in a microwave sterilizer?

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