{
  "type": "book",
  "site": {
    "name": "Kołczan Książek",
    "language": "pl-PL",
    "url": "https://www.kolczanksiazek.pl"
  },
  "formats": "Każda podstrona ma dwie wersje z tymi samymi danymi: JSON (adres strony + .json) i markdown (adres strony + .md). Do każdego `url` w tym dokumencie można dopisać .json albo .md.",
  "title": "Ferment",
  "subtitle": null,
  "slug": "ferment",
  "url": "https://www.kolczanksiazek.pl/tim-spector/ferment",
  "json": "https://www.kolczanksiazek.pl/tim-spector/ferment.json",
  "markdown": "https://www.kolczanksiazek.pl/tim-spector/ferment.md",
  "authors": [
    {
      "name": "Tim Spector",
      "slug": "tim-spector",
      "url": "https://www.kolczanksiazek.pl/tim-spector"
    }
  ],
  "language": "pl_PL",
  "original_title": null,
  "original_language": "en",
  "first_published": "2026-01-01",
  "genres": [
    {
      "code": "PB",
      "heading": "Matematyka"
    },
    {
      "code": "PDZ",
      "heading": "Popularyzacja nauki"
    },
    {
      "code": "T",
      "heading": "Technika, inżynieria i rolnictwo, procesy przemysłowe"
    },
    {
      "code": "VFD",
      "heading": "Medycyna i zdrowie w ujęciu popularnym"
    },
    {
      "code": "VFM",
      "heading": "Fitness i diety"
    },
    {
      "code": "VFV",
      "heading": "Rodzina i związki – poradniki"
    },
    {
      "code": "WB",
      "heading": "Gotowanie, kulinaria i napoje, książki o jedzeniu"
    }
  ],
  "series": [],
  "cover": "https://quivercdn.com/covers/vintage/tim-spector/ferment_978-15-2993-232-4.webp?v=2026-08-09%2018%3A46%3A01",
  "description": "Tim Spector is on a mission to bring fermenting into our lives and kitchens. Drawing on cutting-edge science and his own experiments, with practical tips and recipes, Ferment is an accessible introduction and guide for beginners and fermenting enthusiasts alike. Fermenting is one of the most ancient...",
  "editions": [
    {
      "title": "Ferment",
      "subtitle": null,
      "url": "https://www.kolczanksiazek.pl/tim-spector/ferment/9781529932324",
      "publisher": "Vintage",
      "translators": [],
      "medium": "paper",
      "duration_seconds": null,
      "narrators": [],
      "illustrators": [],
      "cover_artists": [],
      "isbn": "978-15-2993-232-4",
      "pages": 318,
      "published": "2026-01-01",
      "language": "pl_PL",
      "cover": "https://quivercdn.com/covers/vintage/tim-spector/ferment_978-15-2993-232-4.webp?v=2026-08-09%2018%3A46%3A01"
    }
  ],
  "other_languages": [
    {
      "title": "Ferment",
      "language": "en_GB",
      "url": "https://www.kolczanksiazek.pl/tim-spector/en/ferment"
    }
  ],
  "characters": [],
  "chapters": []
}