{
  "schema_version": "compare-page.v2",
  "page_id": "age-suitability-of-glass-baby-bottles",
  "url": "https://robotrunk.com/compare/want/age-suitability-of-glass-baby-bottles",
  "title": "Age Range for Lifefactory Glass Baby Bottles",
  "question": "What age range are Lifefactory glass baby bottles suitable for, based on their nipple stages?",
  "answer": "Lifefactory 4oz Glass Baby Bottle with Silicone Sleeve: The bottle comes with a silicone sleeve, polypropylene cap, ring, stopper, and Stage 1 (0-3 months) silicone nipple.\nLifefactory 4oz Glass Baby Bottle: The included Stage 1 silicone nipple is intended for ages 0–3 months.\nLifefactory 9oz Glass Baby Bottle: The included Stage 2 nipple is intended for ages 3–6 months.",
  "kind": "baby bottle",
  "market": "US",
  "generated_at": "2026-10-10T23:13:20.474Z",
  "columns": [
    "Nipple age",
    "Capacity",
    "Breakability"
  ],
  "notices": {
    "facts": "Every value in the table is a fact RoboTrunk checked, linked to the page it came from. A dash means no checked fact fills that cell.",
    "price": "Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live."
  },
  "cited_facts": [
    {
      "ref": "p1.f2",
      "product": "Lifefactory 4oz Glass Baby Bottle",
      "field": "capacity and included parts",
      "value": "The 4 oz (120 ml) bottle includes a silicone sleeve, polypropylene cap, ring, stopper and a Stage 1 silicone nipple.",
      "stated_as": "Our 4oz borosilicate glass baby bottle comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple.",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
      "source_read_at": "2026-09-25T17:09:55.514Z"
    },
    {
      "ref": "p1.f3",
      "product": "Lifefactory 4oz Glass Baby Bottle",
      "field": "breakability",
      "value": "The bottle is durable but not unbreakable; dropped or worn products are not treated as manufacturing defects.",
      "stated_as": "While our bottles are durable, we do not claim our product to be unbreakable.",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/pages/faq",
      "source_read_at": "2026-09-25T17:09:56.812Z"
    },
    {
      "ref": "p1.f6",
      "product": "Lifefactory 4oz Glass Baby Bottle",
      "field": "age and nipple stage",
      "value": "The included Stage 1 silicone nipple is intended for ages 0–3 months.",
      "stated_as": "Stage 1 (0-3 months) silicone nipple",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
      "source_read_at": "2026-09-25T17:09:55.514Z"
    },
    {
      "ref": "p2.f5",
      "product": "Lifefactory 4oz Glass Baby Bottle with Silicone Sleeve",
      "field": "included components",
      "value": "The bottle comes with a silicone sleeve, polypropylene cap, ring, stopper, and Stage 1 (0-3 months) silicone nipple.",
      "stated_as": "Our 4oz borosilicate glass baby bottle comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple.",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
      "source_read_at": "2026-10-10T04:29:35.557Z"
    },
    {
      "ref": "p2.f8",
      "product": "Lifefactory 4oz Glass Baby Bottle with Silicone Sleeve",
      "field": "durability",
      "value": "The bottles survived many drops from a highchair, stroller, and backpack without breaking; one broke on asphalt after being thrown from a stroller.",
      "stated_as": "The bottles survived many drops from a highchair, stroller, and backpack without breaking; one broke on asphalt after being thrown from a stroller.",
      "source_type": "blog",
      "source_url": "https://blueandhazel.com/the-best-glass-baby-bottle",
      "source_read_at": "2026-10-10T04:30:15.111Z"
    },
    {
      "ref": "p3.f2",
      "product": "Lifefactory 9oz Glass Baby Bottle",
      "field": "capacity",
      "value": "The bottle holds 9 oz (265 ml).",
      "stated_as": "9 oz (265 ml)",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/products/9oz-glass-baby-bottle",
      "source_read_at": "2026-09-25T17:18:47.109Z"
    },
    {
      "ref": "p3.f3",
      "product": "Lifefactory 9oz Glass Baby Bottle",
      "field": "nipple age",
      "value": "The included Stage 2 nipple is intended for ages 3–6 months.",
      "stated_as": "The 9 oz. baby bottles include the Stage 2 (3-6 months) silicone nipple.",
      "source_type": "guide",
      "source_url": "https://lifefactory.com/pages/faq",
      "source_read_at": "2026-09-25T17:18:49.792Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "albeebaby-com",
        "display_name": "albeebaby.com"
      },
      "product_id": "gid://shopify/Product/9577459220711",
      "name": "Lifefactory 4oz Glass Baby Bottle with Silicone Sleeve",
      "url": "/products/ucp/albeebaby-com/9577459220711",
      "why": "The bottle comes with a silicone sleeve, polypropylene cap, ring, stopper, and Stage 1 (0-3 months) silicone nipple.",
      "cells": [
        {
          "column": "Nipple age",
          "fact": {
            "field": "included components",
            "value": "The bottle comes with a silicone sleeve, polypropylene cap, ring, stopper, and Stage 1 (0-3 months) silicone nipple.",
            "stated_as": "Our 4oz borosilicate glass baby bottle comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple.",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
            "source_read_at": "2026-10-10T04:29:35.557Z"
          }
        },
        {
          "column": "Capacity",
          "fact": null
        },
        {
          "column": "Breakability",
          "fact": {
            "field": "durability",
            "value": "The bottles survived many drops from a highchair, stroller, and backpack without breaking; one broke on asphalt after being thrown from a stroller.",
            "stated_as": "The bottles survived many drops from a highchair, stroller, and backpack without breaking; one broke on asphalt after being thrown from a stroller.",
            "source_type": "blog",
            "source_url": "https://blueandhazel.com/the-best-glass-baby-bottle",
            "source_read_at": "2026-10-10T04:30:15.111Z"
          }
        }
      ]
    },
    {
      "rank": 2,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/6739334692950",
      "name": "Lifefactory 4oz Glass Baby Bottle",
      "url": "/products/ucp/anbbaby-com/6739334692950",
      "why": "The included Stage 1 silicone nipple is intended for ages 0–3 months.",
      "cells": [
        {
          "column": "Nipple age",
          "fact": {
            "field": "age and nipple stage",
            "value": "The included Stage 1 silicone nipple is intended for ages 0–3 months.",
            "stated_as": "Stage 1 (0-3 months) silicone nipple",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
            "source_read_at": "2026-09-25T17:09:55.514Z"
          }
        },
        {
          "column": "Capacity",
          "fact": {
            "field": "capacity and included parts",
            "value": "The 4 oz (120 ml) bottle includes a silicone sleeve, polypropylene cap, ring, stopper and a Stage 1 silicone nipple.",
            "stated_as": "Our 4oz borosilicate glass baby bottle comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple.",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/products/4oz-glass-baby-bottle",
            "source_read_at": "2026-09-25T17:09:55.514Z"
          }
        },
        {
          "column": "Breakability",
          "fact": {
            "field": "breakability",
            "value": "The bottle is durable but not unbreakable; dropped or worn products are not treated as manufacturing defects.",
            "stated_as": "While our bottles are durable, we do not claim our product to be unbreakable.",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/pages/faq",
            "source_read_at": "2026-09-25T17:09:56.812Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "anbbaby-com",
        "display_name": "anbbaby.com"
      },
      "product_id": "gid://shopify/Product/6739338297430",
      "name": "Lifefactory 9oz Glass Baby Bottle",
      "url": "/products/ucp/anbbaby-com/6739338297430",
      "why": "The included Stage 2 nipple is intended for ages 3–6 months.",
      "cells": [
        {
          "column": "Nipple age",
          "fact": {
            "field": "nipple age",
            "value": "The included Stage 2 nipple is intended for ages 3–6 months.",
            "stated_as": "The 9 oz. baby bottles include the Stage 2 (3-6 months) silicone nipple.",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/pages/faq",
            "source_read_at": "2026-09-25T17:18:49.792Z"
          }
        },
        {
          "column": "Capacity",
          "fact": {
            "field": "capacity",
            "value": "The bottle holds 9 oz (265 ml).",
            "stated_as": "9 oz (265 ml)",
            "source_type": "guide",
            "source_url": "https://lifefactory.com/products/9oz-glass-baby-bottle",
            "source_read_at": "2026-09-25T17:18:47.109Z"
          }
        },
        {
          "column": "Breakability",
          "fact": null
        }
      ]
    }
  ]
}