{
  "formatVersion": 1,
  "site": "Grinder Wiki",
  "url": "https://grinderwiki.com/specs/1zpresso-j-ultra/",
  "name": "1Zpresso J-Ultra",
  "brand": "1Zpresso",
  "model": "J-Ultra",
  "aliases": [
    "J-Ultra Grinder"
  ],
  "availability": "available",
  "officialUrl": "https://1zpresso.coffee/j-ultra/",
  "image": "https://grinderwiki.com/products/1zpresso-j-ultra.webp",
  "checkedAt": "2026-09-26",
  "specs": [
    {
      "key": "grinder_type",
      "name": "Type",
      "kind": "enum",
      "value": "manual",
      "text": "Manual",
      "sources": [
        1
      ]
    },
    {
      "key": "burr_diameter",
      "name": "Burr size",
      "kind": "number",
      "value": 48,
      "unit": "mm",
      "text": "48 mm",
      "sources": [
        1
      ]
    },
    {
      "key": "adjustment",
      "name": "Adjustment",
      "kind": "enum",
      "value": "stepped",
      "text": "Stepped",
      "sources": [
        1
      ]
    },
    {
      "key": "adjustment_resolution",
      "name": "Adjustment step",
      "kind": "text",
      "value": "8 microns per click",
      "text": "8 microns per click",
      "sources": [
        1
      ]
    },
    {
      "key": "capacity",
      "name": "Hopper",
      "kind": "range",
      "min": 35,
      "max": 40,
      "unit": "g",
      "text": "1.2–1.4 oz (35–40 g)",
      "sources": [
        2
      ]
    },
    {
      "key": "weight",
      "name": "Weight",
      "kind": "number",
      "value": 670,
      "unit": "g",
      "text": "1.5 lb (670 g)",
      "sources": [
        2
      ]
    }
  ],
  "sources": [
    {
      "id": 1,
      "url": "https://1zpresso.coffee/j-ultra/",
      "title": "1Zpresso J-Ultra official product page",
      "kind": "official",
      "retrievedAt": "2026-09-26"
    },
    {
      "id": 2,
      "url": "https://1zpresso.coffee/j/",
      "title": "1Zpresso J-Ultra official comparison table",
      "kind": "official",
      "retrievedAt": "2026-09-26"
    }
  ]
}