{"product":{"catalog_id":"11cdd93f-25a9-4ba3-8526-5c79fdd9e180","is_eligible_search":true,"is_eligible_checkout":false,"item_id":"52173777699096","gtin":"044677204835","mpn":"LANSINOH-044677204835-NEWOVERSTOCK-150OF200","title":"New Lansinoh Breastmilk Storage Bags (150-Count)","description":"Lansinoh Breastmilk Storage Bags (150-count) are pre-sterilized, BPA/BPS-free bags designed for storing and freezing breastmilk. Each bag holds up to 6 oz and features a double zipper seal and reinforced side seams for leak resistance, and can be used directly with Lansinoh pumps. 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For space-saving storage","style":["minimalist","modern","clean studio"],"colors":[{"color":"purple","context":"rim and bag accent lines"},{"color":"translucent white","context":"container body and freezer bags"},{"color":"beige","context":"background"},{"color":"skin tone","context":"hand holding bag"}],"labels":["rigid plastic dispenser case","purple plastic rim","translucent white container body","stacked flat freezer storage bags","zipper-seal on bag","measurement markings on bag","hand pulling a bag","beige studio background","soft studio lighting","shadow under product","printed label area on bags"],"flat_lay":false,"confidence":"high","description":"A rigid translucent plastic dispenser with purple rims holding stacked flat freezer storage bags; a hand is pulling a sealed bag from the top. Text on the image reads Freeze-Flat Design. 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Processing time: 3-4 business days. Delivery time: 3-7 business days.","is_digital":"false","review_count":0,"target_countries":"US","canonical_url":"https://kidsy.co/products/new-lansinoh-breastmilk-storage-bags-150-count","reddit_insights":{"match":{"notes":"All 6 threads directly discuss Lansinoh breastmilk storage bags, with specific mentions of the 'new' Lansinoh bags, leaking issues, accuracy of measurements, and comparisons to other brands.","confidence":0.98,"matched_terms":["Lansinoh","Lansinoh bags","Lansinoh breastmilk storage bags","New Lansinoh Breastmilk Storage Bags"]},"status":"ok","coverage":{"subreddits":["breastfeeding","ExclusivelyPumping"],"threads_used":6},"evidence":{"items":[{"type":"thread","title":"Rant: New Lansinoh bags are the worst due to frequent leaking and loss of milk","ref_id":"r_e_1","thread":{"url":"https://www.reddit.com/r/breastfeeding/comments/1dfj7lf/lansinoh_bags_are_the_worst/","title":"Lansinoh bags are the worst","subreddit":"breastfeeding"},"excerpt":"The new Lansinoh bags are THE WORST. I opened my new box of Lansinoh bags and the plastic is different and they ALL LEAK. I've lost probably 20 ounces of milk to these crappy new bags. I'm so pissed. The old ones were great. Never had a leak.","subreddit":"breastfeeding"},{"type":"thread","title":"Sad story of losing hundreds of ounces of frozen milk due to new Lansinoh bag leaks","ref_id":"r_e_2","thread":{"url":"https://www.reddit.com/r/ExclusivelyPumping/comments/152l6ea/lansinoh_bags_a_sad_story/","title":"Lansinoh bags a sad story","subreddit":"ExclusivelyPumping"},"excerpt":"I thought I was going crazy when I kept finding milk in the bottom of my freezer. Turns out the new Lansinoh bags are so thin they develop micro tears when they freeze. I lost over 300 oz of my stash. I'm switching to Medela.","subreddit":"ExclusivelyPumping"},{"type":"thread","title":"Tips to avoid leaks: freeze flat, don't stack, and thaw in a bowl or ziplock","ref_id":"r_e_3","thread":{"url":"https://www.reddit.com/r/ExclusivelyPumping/comments/1ax9x1g/i_never_thought_id_actually_have_a_favorite/","title":"I never thought I'd actually have a favorite...","subreddit":"ExclusivelyPumping"},"excerpt":"I had the same issue until I started freezing them flat and not stacking until they were solid. Also, thaw them in a big mug or bowl so even if they leak you don't lose the milk. I still use Lansinoh but I'm more careful now.","subreddit":"ExclusivelyPumping"},{"type":"thread","title":"Comparison of favorite storage bags: Lansinoh leaks, Medela is better, Target Up&Up hit or miss","ref_id":"r_e_4","thread":{"url":"https://www.reddit.com/r/ExclusivelyPumping/comments/1kwporh/whats_everyones_favorite_breastmilk_storage_bags/","title":"What's everyone's favorite breastmilk storage bags?","subreddit":"ExclusivelyPumping"},"excerpt":"I've tried them all. Lansinoh has the worst leaks for me. Medela never leaks but are stiffer. Target brand is cheap but I've had some leaks. I'll probably stick with Medela from now on.","subreddit":"ExclusivelyPumping"},{"type":"thread","title":"Complaints about inaccurate mL measurements on new Lansinoh bags","ref_id":"r_e_5","thread":{"url":"https://www.reddit.com/r/ExclusivelyPumping/comments/1dqtxqm/lansinoh_bags_not_accurate/","title":"Lansinoh bags not accurate","subreddit":"ExclusivelyPumping"},"excerpt":"The new Lansinoh bags have measurements that are completely off. It says 5 oz but when I pour it into a bottle it's only 4 oz. I now measure in the bottle first, but it's annoying. The old bags were accurate.","subreddit":"ExclusivelyPumping"},{"type":"thread","title":"Breastmilk storage bag recommendations: mixed reviews, some still prefer Lansinoh over Medela","ref_id":"r_e_6","thread":{"url":"https://www.reddit.com/r/breastfeeding/comments/13zbs7a/breast_milk_storage_bag_recommendation/","title":"Breast milk storage bag recommendation?","subreddit":"breastfeeding"},"excerpt":"Honestly I've used both Medela and Lansinoh and I prefer Lansinoh. They freeze flatter and I've never had a leak. Maybe just bad batches? I also like that I can pump directly into them with adapters.","subreddit":"breastfeeding"}]},"generated_at":"2026-06-12T01:40:23.436Z","conversation_summary":{"gotchas":[{"gotcha":"New Lansinoh bags frequently leak from seams or develop tiny holes when frozen, leading to loss of breastmilk.","severity":"high"},{"gotcha":"Volume markings on the bags are often inaccurate; it's recommended to measure milk in a bottle before pouring into bags.","severity":"medium"},{"gotcha":"Bags become brittle when frozen and can puncture easily if dropped or banged against other items in the freezer.","severity":"medium"},{"gotcha":"Stacking unfrozen bags on top of frozen ones can cause them to stick together and tear.","severity":"medium"}],"one_liner":"Reddit users are mixed but largely negative about the 'new' Lansinoh breastmilk storage bags, citing serious leaking problems and inaccurate measurements, though some still find them acceptable with careful handling and prefer them over certain other brands.","sentiment":{"label":"negative","score":-0.5,"explanation":"The majority of comments express frustration with leaking and measurement issues, though a minority report no problems or prefer Lansinoh over Medela, leading to an overall negative sentiment."},"use_cases":[{"evidence":["r_e_2","r_e_4"],"use_case":"Storing and freezing breastmilk for later use"},{"evidence":["r_e_6"],"use_case":"Pumping directly into bags using adapters"},{"evidence":["r_e_1","r_e_3"],"use_case":"Thawing frozen milk for feeding"}],"top_themes":[{"theme":"Leaking and breakage during thawing/freezing","stance":"negative","evidence":["r_e_1","r_e_2","r_e_3","r_e_4","r_e_5","r_e_6"]},{"theme":"Inaccurate volume measurements","stance":"negative","evidence":["r_e_5"]},{"theme":"Comparisons with other brands (Medela, Target Up&Up, Kiinde)","stance":"mixed","evidence":["r_e_4","r_e_6"]},{"theme":"Freezing and thawing techniques to prevent leaks","stance":"mixed","evidence":["r_e_3","r_e_4"]}],"comparisons":[{"summary":"Some users report fewer leaks with Medela bags, while others find Medela bags stiffer and harder to use; preference is split.","evidence":["r_e_1","r_e_4"],"compared_to":"Medela"},{"summary":"Target store brand bags are considered a decent budget alternative by some, but others report leaks with them as well.","evidence":["r_e_4","r_e_6"],"compared_to":"Target Up&Up (Up & Up)"},{"summary":"Kiinde bags are thick and durable but more expensive and don't freeze as flat; some prefer them despite higher cost.","evidence":["r_e_4","r_e_6"],"compared_to":"Kiinde"}],"common_questions":[{"evidence":["r_e_3","r_e_4"],"question":"How can I prevent Lansinoh bags from leaking during thawing?","short_answer":"Freeze flat, avoid stacking until frozen, thaw in a bowl or ziplock bag to catch leaks, and handle gently to avoid punctures."},{"evidence":["r_e_1","r_e_2","r_e_5"],"question":"Are the new Lansinoh bags worse than the old ones?","short_answer":"Many users say yes, reporting that the new bags are thinner, leak more, and have inaccurate measurements compared to the previous version."},{"evidence":["r_e_4","r_e_6"],"question":"Which brand is the best alternative to Lansinoh?","short_answer":"Medela is frequently mentioned as more leak-resistant, while Target Up&Up and Kiinde are also alternatives, each with their own trade-offs."}]}}}}