{
  "schema_version": "compare-page.v2",
  "page_id": "milk-capacity-of-silicone-breast-pumps",
  "url": "https://robotrunk.com/compare/want/milk-capacity-of-silicone-breast-pumps",
  "title": "Milk capacity of silicone breast pumps",
  "question": "How much milk does a silicone breast pump hold?",
  "answer": "Haakaa Generation 1 Silicone Breast Pump (Gen. 1): The pump holds 4 oz / 100 ml of milk.\nHaakaa Generation 3 Silicone Breast Pump: The Gen 3 pump comes in 160ml/6oz and 250ml/9oz capacities.\nHaakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap (Gen 2): It is sold in two capacities: 100 ml (4 oz) and 150 ml (5 oz).\nHaakaa Gen 2 (combo pack): The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
  "kind": "breastfeeding supply",
  "market": "US",
  "generated_at": "2026-10-23T05:17:06.408Z",
  "columns": [
    "Capacity",
    "Material"
  ],
  "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": "Haakaa Generation 3 Silicone Breast Pump",
      "field": "Capacities",
      "value": "The Gen 3 pump comes in 160ml/6oz and 250ml/9oz capacities.",
      "stated_as": "Available in 160ml/6oz and 250ml/9oz capacities",
      "source_type": "listing",
      "source_url": "https://temp2016.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:21:10.371Z"
    },
    {
      "ref": "p1.f4",
      "product": "Haakaa Generation 3 Silicone Breast Pump",
      "field": "Materials",
      "value": "The store listing describes the pump as made from food-grade silicone.",
      "stated_as": "Made from food-grade silicone, this compact pump is perfect for long-distance plane or car rides",
      "source_type": "listing",
      "source_url": "https://temp2016.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:21:10.371Z"
    },
    {
      "ref": "p5.f6",
      "product": "Haakaa Gen 2",
      "field": "Feel and material",
      "value": "The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
      "stated_as": "The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
      "source_type": "blog",
      "source_url": "https://www.thebabyverse.org/haakaa-gen-2-silicone-breast-pump-5oz-review-the-secret-weapon-for-maximizing-your-liquid-gold/",
      "source_read_at": "2026-10-12T13:03:02.165Z"
    },
    {
      "ref": "p5.f9",
      "product": "Haakaa Gen 2",
      "field": "Material",
      "value": "The pump is made from soft 100% food-grade silicone.",
      "stated_as": "Made from soft 100% food grade silicone.",
      "source_type": "listing",
      "source_url": "https://temp2016.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:21:10.371Z"
    },
    {
      "ref": "p7.f1",
      "product": "Haakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap (Gen 2)",
      "field": "material and feel",
      "value": "The pump is made from 100% food-grade silicone and is described as especially soft and comfortable.",
      "stated_as": "Especially soft and comfortable - made from 100% food grade silicone.",
      "source_type": "guide",
      "source_url": "https://temp2016.myshopify.com/products/haakaa-gen-2-silicone-pump-with-silicon-lid-1-set",
      "source_read_at": "2026-10-12T12:29:24.940Z"
    },
    {
      "ref": "p7.f6",
      "product": "Haakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap (Gen 2)",
      "field": "capacity",
      "value": "It is sold in two capacities: 100 ml (4 oz) and 150 ml (5 oz).",
      "stated_as": "Size: 4 oz (100 ml) or 5 oz (150 ml)",
      "source_type": "guide",
      "source_url": "https://temp2016.myshopify.com/products/haakaa-gen-2-silicone-pump-with-silicon-lid-1-set",
      "source_read_at": "2026-10-12T12:29:24.940Z"
    },
    {
      "ref": "p9.f1",
      "product": "Haakaa Generation 1 Silicone Breast Pump (Gen. 1)",
      "field": "capacity",
      "value": "The pump holds 4 oz / 100 ml of milk.",
      "stated_as": "4oz/100ml capacity.",
      "source_type": "listing",
      "source_url": "https://temp2016.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:21:10.371Z"
    },
    {
      "ref": "p9.f9",
      "product": "Haakaa Generation 1 Silicone Breast Pump (Gen. 1)",
      "field": "material",
      "value": "The pump is made from soft 100% food-grade silicone in a single piece, with no joints or separate parts.",
      "stated_as": "Soft and comfortable 100% food grade silicone.",
      "source_type": "listing",
      "source_url": "https://temp2016.myshopify.com/products.json",
      "source_read_at": "2026-10-11T07:21:10.371Z"
    }
  ],
  "rows": [
    {
      "rank": 1,
      "merchant": {
        "slug": "haakaausa-com",
        "display_name": "haakaausa.com"
      },
      "product_id": "gid://shopify/Product/8244368449",
      "name": "Haakaa Generation 1 Silicone Breast Pump (Gen. 1)",
      "url": "/products/ucp/haakaausa-com/8244368449",
      "why": "The pump holds 4 oz / 100 ml of milk.",
      "cells": [
        {
          "column": "Capacity",
          "fact": {
            "field": "capacity",
            "value": "The pump holds 4 oz / 100 ml of milk.",
            "stated_as": "4oz/100ml capacity.",
            "source_type": "listing",
            "source_url": "https://temp2016.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:21:10.371Z"
          }
        },
        {
          "column": "Material",
          "fact": {
            "field": "material",
            "value": "The pump is made from soft 100% food-grade silicone in a single piece, with no joints or separate parts.",
            "stated_as": "Soft and comfortable 100% food grade silicone.",
            "source_type": "listing",
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    },
    {
      "rank": 2,
      "merchant": {
        "slug": "haakaausa-com",
        "display_name": "haakaausa.com"
      },
      "product_id": "gid://shopify/Product/803136733237",
      "name": "Haakaa Generation 3 Silicone Breast Pump",
      "url": "/products/ucp/haakaausa-com/803136733237",
      "why": "The Gen 3 pump comes in 160ml/6oz and 250ml/9oz capacities.",
      "cells": [
        {
          "column": "Capacity",
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            "field": "Capacities",
            "value": "The Gen 3 pump comes in 160ml/6oz and 250ml/9oz capacities.",
            "stated_as": "Available in 160ml/6oz and 250ml/9oz capacities",
            "source_type": "listing",
            "source_url": "https://temp2016.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:21:10.371Z"
          }
        },
        {
          "column": "Material",
          "fact": {
            "field": "Materials",
            "value": "The store listing describes the pump as made from food-grade silicone.",
            "stated_as": "Made from food-grade silicone, this compact pump is perfect for long-distance plane or car rides",
            "source_type": "listing",
            "source_url": "https://temp2016.myshopify.com/products.json",
            "source_read_at": "2026-10-11T07:21:10.371Z"
          }
        }
      ]
    },
    {
      "rank": 3,
      "merchant": {
        "slug": "haakaausa-com",
        "display_name": "haakaausa.com"
      },
      "product_id": "gid://shopify/Product/1436330459189",
      "name": "Haakaa Generation 2 Silicone Breast Pump with Suction Base & Silicone Cap (Gen 2)",
      "url": "/products/ucp/haakaausa-com/1436330459189",
      "why": "It is sold in two capacities: 100 ml (4 oz) and 150 ml (5 oz).",
      "cells": [
        {
          "column": "Capacity",
          "fact": {
            "field": "capacity",
            "value": "It is sold in two capacities: 100 ml (4 oz) and 150 ml (5 oz).",
            "stated_as": "Size: 4 oz (100 ml) or 5 oz (150 ml)",
            "source_type": "guide",
            "source_url": "https://temp2016.myshopify.com/products/haakaa-gen-2-silicone-pump-with-silicon-lid-1-set",
            "source_read_at": "2026-10-12T12:29:24.940Z"
          }
        },
        {
          "column": "Material",
          "fact": {
            "field": "material and feel",
            "value": "The pump is made from 100% food-grade silicone and is described as especially soft and comfortable.",
            "stated_as": "Especially soft and comfortable - made from 100% food grade silicone.",
            "source_type": "guide",
            "source_url": "https://temp2016.myshopify.com/products/haakaa-gen-2-silicone-pump-with-silicon-lid-1-set",
            "source_read_at": "2026-10-12T12:29:24.940Z"
          }
        }
      ]
    },
    {
      "rank": 4,
      "merchant": {
        "slug": "haakaausa-com",
        "display_name": "haakaausa.com"
      },
      "product_id": "gid://shopify/Product/8540950349",
      "name": "Haakaa Gen 2",
      "url": "/products/ucp/haakaausa-com/8540950349",
      "why": "The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
      "cells": [
        {
          "column": "Capacity",
          "fact": {
            "field": "Feel and material",
            "value": "The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
            "stated_as": "The food-grade silicone feels substantial yet soft to the touch, and the 150 ml capacity markings are clear and easy to read.",
            "source_type": "blog",
            "source_url": "https://www.thebabyverse.org/haakaa-gen-2-silicone-breast-pump-5oz-review-the-secret-weapon-for-maximizing-your-liquid-gold/",
            "source_read_at": "2026-10-12T13:03:02.165Z"
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          "column": "Material",
          "fact": {
            "field": "Material",
            "value": "The pump is made from soft 100% food-grade silicone.",
            "stated_as": "Made from soft 100% food grade silicone.",
            "source_type": "listing",
            "source_url": "https://temp2016.myshopify.com/products.json",
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          }
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    }
  ]
}