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using the Options+ bottles report minimal to no issues with spit-up, gas, and colic, which they attribute to the anti-colic vent system.","locators":{"page":"https://babyfoode.com/blog/dr-browns-options-bottle-review/","post_date":"2025-06-10","publication":"Baby Foode","post_date_kind":"updated"}},{"id":"01M4P3YA7W2AW5ZZ9V84R5V03M","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","kind":"blog","text":"Parents appreciate the controlled flow that lets babies feed at their own pace.","locators":{"page":"https://babyfoode.com/blog/dr-browns-options-bottle-review/","post_date":"2025-06-10","publication":"Baby Foode","post_date_kind":"updated"}},{"id":"01M4P3YAMCV58N9K4KVD1K4MBC","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","kind":"blog","text":"The blog notes the bottles are available in glass or BPA-free 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mold.","locators":{"page":"https://babyfoode.com/blog/dr-browns-options-bottle-review/","post_date":"2025-06-10","publication":"Baby Foode","post_date_kind":"updated"}},{"id":"01M4P3YCFD889G7A3S6R58GM2Y","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","kind":"blog","text":"Some parents report leaking, but others do not; leaks are often fixed by not overfilling and tightening the cap.","locators":{"page":"https://babyfoode.com/blog/dr-browns-options-bottle-review/","post_date":"2025-06-10","publication":"Baby Foode","post_date_kind":"updated"}},{"id":"01M4P3YCVRCT90JSCTRRQRC2EE","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","kind":"blog","text":"Parents report the bottles fit most breast pumps, including Medela pump tops, and the nipples also fit Medela 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cap.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YCFD889G7A3S6R58GM2Y","excerpt_id":null,"span_sha256":"078de90174a59bf2647178d4072c5d751e042b7caae987211700d74adf6cf84e","source_locator":null}},{"id":"01M4P3YP8GGW7VVYSXY8YC2KDW","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:0:listing","field":"anti-colic claim","ordinal":3,"value_number":null,"unit":null,"value_text":"The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.","original_value":"The anti-colic internal vent system is clinically proven to reduce colic and helps reduce spit-up, burping, and gas.","confidence":1,"citation":{"lineage_tier":"T1","artefact_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:0:listing:artefact:613d92aa8f7e8da9b230a4ef345d8ef6afdb11a7bfa2b19ec9a60f2c8f592134","start":507,"end":623,"summary_id":null,"excerpt_id":null,"span_sha256":"c56f1e2385df4b95c61e75b20f1342a284448e27e08cce43736ca4daa6c971f5","source_locator":"characters 507 to 623 of the retained text"}},{"id":"01M4P3YPN4B3W6X5G6DCKVHQ7T","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:1:guide","field":"vent removal","ordinal":3,"value_number":null,"unit":null,"value_text":"Works best with the internal vent system in place but can be removed as baby’s feeding develops, with no need to introduce a different bottle.","original_value":"Dr. Brown’s Natural Flow® Anti-Colic Options+™ baby bottle works best with the internal vent system in place but can be removed as baby’s 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plastic.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YAMCV58N9K4KVD1K4MBC","excerpt_id":null,"span_sha256":"afd056347f93b212f00ef46a591bd1002a93f52a837ac56eba391ce7c34a36df","source_locator":null}},{"id":"01M4P3YZHJBK2V4GDW9JR0RZFJ","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","field":"recommended age","ordinal":11,"value_number":null,"unit":null,"value_text":"The blog recommends the bottles for newborns to 12 months of age.","original_value":"The blog recommends the bottles for newborns to 12 months of age.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YAZRZAETZ9TTCX6K6NBS","excerpt_id":null,"span_sha256":"535d563800ec2043111443758ea6942789c5c65937a398853a5592a1cccfb490","source_locator":null}},{"id":"01M4P3YZWXYJVYZCP07SC4G8X0","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","field":"sterilizing","ordinal":12,"value_number":null,"unit":null,"value_text":"For older, healthy babies, daily sterilizing may not be necessary if the bottle and parts are carefully cleaned after each use.","original_value":"For older, healthy babies, daily sterilizing may not be necessary if the bottle and parts are carefully cleaned after each use.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YBCGPY8NS2SZ4YKDQM49","excerpt_id":null,"span_sha256":"434fa2a7d9adefb6d05a0f16f355e1d370a7cbf3fed7bdadbbaf291b5914e5bc","source_locator":null}},{"id":"01M4P3Z089C8NYKBKHZ08TDA7J","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","field":"mold prevention","ordinal":13,"value_number":null,"unit":null,"value_text":"To prevent mold, parents should rinse the internal vent after feeding and let all parts air dry fully before storing.","original_value":"To prevent mold, parents should rinse the internal vent after feeding and let all parts air dry fully before storing.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YBR1TZRSCM7MAWZEFKY3","excerpt_id":null,"span_sha256":"3b86e081881e28162f83d539d9f86d8a47c499702130c82d413209d3d9736a73","source_locator":null}},{"id":"01M4P3Z0KQED5JMSGS6TYXJP3A","source_id":"drbrownsbaby-com--dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml:quick:source:5:blog","field":"dishwasher","ordinal":14,"value_number":null,"unit":null,"value_text":"The bottle, parts, and nipple are dishwasher top-rack safe, but small areas in the internal vent should be cleaned before dishwashing to avoid mold.","original_value":"The bottle, parts, and nipple are dishwasher top-rack safe, but small areas in the internal vent should be cleaned before dishwashing to avoid mold.","confidence":0.7,"citation":{"lineage_tier":"T2","artefact_id":null,"start":null,"end":null,"summary_id":"01M4P3YC3NNFPHWD168B82WKFH","excerpt_id":null,"span_sha256":"91a73843fbd471b869e48c976e9dbccd33a43a656f6f7d24e4aaaed0c3d937bb","source_locator":null}}],"facet_texts":[],"gaps":[{"id":"01M4P3Z1BS56EAVM2FZMYNEYM5","source_type":"blog","url":"https://bumpbites.health/blogs/best-glass-baby-bottles","reason":"not read","detail":"The server failed (HTTP 503).","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z1QDTDEYAXCJHVW7MEV2","source_type":"facets","url":null,"reason":"embeddings skipped in the deep lane","detail":"the deep lane makes no embedding call; this pack has no facet texts and no vectors","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z22Y2GN65CRR2SDD7XE4","source_type":"manual","url":"https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf","reason":"not_found","detail":"Left out: \"Narrow nipples are made of 100% silicone.\" (nipple material). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z2FT8ZD070HGC4EEC7XA","source_type":"manual","url":"https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf","reason":"not_found","detail":"Left out: \"Glass is associated with easier cleaning and deeper hygiene, and does not absorb food odors, flavors, or colors.\" (glass material). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z2YFBW6DCBC9ZKFHCH7T","source_type":"manual","url":"https://cdn.productreview.com.au/document/entry-product-manual/4f254869-c238-5dbd-821c-2f21f2424743","reason":"not_found","detail":"Left out: \"Manual says place the cap on the bottle when not in use and use the travel disk when in transit.\" (storage). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z39V7AZCE29VBX2FZKW0","source_type":"manual","url":"https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf","reason":"not_found","detail":"Left out: \"Catalog lists a narrow glass Options+ bottle in 4 oz/120 mL.\" (size availability). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z3NBYPSH2HGA076D71Y4","source_type":"manual","url":"https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf","reason":"not_found","detail":"Left out: \"Catalog also lists a narrow glass Options+ bottle in 8 oz/240 mL and a 2-pack of the 4 oz/120 mL glass narrow bottle.\" (size availability). The quote the research turn gave for it was not found in the text retained from this page.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z40QKHHRVE1K1VF6ZHDP","source_type":"review","url":"https://www.influenster.com/reviews/dr-browns-options-narrow-baby-bottle","reason":"not read","detail":"The server refused RoboTrunk's named fetcher (HTTP 403). It is not retried under another identity.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z4CMNQN5MYS4D9BVXSYB","source_type":"review","url":"https://www.reddit.com/r/twoxindiamums/comments/1rqma2p/moneysaving_bottle_hack_for_dr_browns_users/","reason":"not read","detail":"Reddit's public .json view of the thread: The server refused RoboTrunk's named fetcher (HTTP 403). It is not retried under another identity. It is never retried in a browser.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z4R87ND5GP3JC28AFCSA","source_type":"review","url":"https://www.reddit.com/r/NewParents/comments/1pvr4rb/best_glass_baby_bottles/","reason":"not read","detail":"Reddit's public .json view of the thread: The server refused RoboTrunk's named fetcher (HTTP 403). It is not retried under another identity. It is never retried in a browser.","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z53QQ6R21FEH0PEHAF15","source_type":"review","url":"https://www.babylist.com/hello-baby/best-glass-baby-bottles","reason":"not used","detail":"read in full; the writer drew no finding or fact from it, so it is not kept in the pack","recorded_at":"2026-10-11T18:22:44.698Z"},{"id":"01M4P3Z5FEPR5VAVEJ5Y8GBSYV","source_type":"review","url":"https://thetestedhub.com/reviews/dr-browns-natural-flow-glass/","reason":"not used","detail":"read in full; the writer drew no finding or fact from it, so it is not kept in the pack","recorded_at":"2026-10-11T18:22:44.698Z"}],"facet_check":null,"evidence_depth":{"note":"Deep read: the store's own data and 7 outside pages (the store's own product page; maker page; manual; spec sheet; blog; 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: CPSC recall search returned a provider error and no usable recall for SKU SB41001; Health Canada's record is for Dr. Brown's Lovey Pacifier & Teether Holders, not this bottle. Still open, with no evidence found: What are the exact dimensions of the 4 oz/120 mL bottle?; What is the empty weight of the 4 oz/120 mL bottle?; Is the glass body borosilicate or soda-lime?; What safety standards or certifications does this bottle meet?; Is there a warranty for this bottle?; What age or weight range is recommended for the Level 1 nipple?; Can the glass bottle be frozen with milk?; Does the bottle fit in a standard car cup holder?; Are replacement nipples and vent parts available separately?; What is the nipple flow rate for Level 1?; Does the bottle come with a travel disk or cap?; What is the maximum temperature the bottle can withstand?; Does the paint or coating on the bottle rub off?; Is the bottle compatible with other Dr. Brown's narrow bottles?; Are any tools needed to assemble the bottle?.","tier":"complex","depth":"trimmed_read","model":"deepseek-flash","recall":{"note":"CPSC recall search returned a provider error and no usable recall for SKU SB41001; Health Canada's record is for Dr. Brown's Lovey Pacifier & Teether Holders, not this bottle.","status":"no_recall_found","regulators_asked":["CPSC (United States)","Health Canada"]},"sources":[{"url":"https://4f71f1-4.myshopify.com/products.json","role":"the store's own data","retained":true},{"url":"https://4f71f1-4.myshopify.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml","role":"the store's own product page","retained":true},{"url":"https://drbrownsbaby.com/products/dr-browns-natural-flow-anti-colic-options-glass-baby-bottle-4oz-120ml?bvstate=pg%3A9%2Fct%3Ar","role":"maker page","retained":true},{"url":"https://cdn.productreview.com.au/document/entry-product-manual/4f254869-c238-5dbd-821c-2f21f2424743","role":"manual","retained":true},{"url":"https://drbrowns.pe/wp-content/uploads/2026/04/Catalogo-Minorista-ABRIL_compressed.pdf","role":"spec sheet","retained":true},{"url":"https://babyfoode.com/blog/dr-browns-options-bottle-review/","role":"blog","retained":true},{"url":"https://www.saferproducts.gov/RestWebServices/Recall?format=json&Manufacturer=Dr.%20Brown's","role":"regulator recall search (CPSC (United States))","retained":true},{"url":"https://recalls-rappels.canada.ca/sites/default/files/opendata-donneesouvertes/HCRSAMOpenData.json","role":"regulator recall search (Health Canada)","retained":true},{"url":"https://thetestedhub.com/reviews/dr-browns-natural-flow-glass/","role":"review","retained":false},{"url":"https://www.babylist.com/hello-baby/best-glass-baby-bottles","role":"review","retained":false}],"reasoning":"low","embeddings":"skipped in the deep lane: no embedding call is made here","searched_for":["maker_page","manual","recall_notices","owner_reviews","blogs","forums","video_reviews"],"open_questions":["What are the exact dimensions of the 4 oz/120 mL bottle?","What is the empty weight of the 4 oz/120 mL bottle?","Is the glass body borosilicate or soda-lime?","What safety standards or certifications does this bottle meet?","Is there a warranty for this bottle?","What age or weight range is recommended for the Level 1 nipple?","Can the glass bottle be frozen with milk?","Does the bottle fit in a standard car cup holder?","Are replacement nipples and vent parts available separately?","What is the nipple flow rate for Level 1?","Does the bottle come with a travel disk or cap?","What is the maximum temperature the bottle can withstand?","Does the paint or coating on the bottle rub off?","Is the bottle compatible with other Dr. Brown's narrow bottles?","Are any tools needed to assemble the bottle?"]}}