Fermented

Summary

This mod adds fermentation to Minecraft, modelled on how it works in real life. Find wild yeast on fruit and flowers, tame it and breed it into Wine, Ale, and Mead Yeast in a Culture Jar, then ferment grape must, wort, or honey in a Cask to make wine, beer, and mead. A drink's own yeast strain ferments it fastest, and every finished batch leaves yeast behind for the next one.

The Big Book of Brewing explains everything in game. Its recipe is unlocked the first time you pick up grapes, hops, hop seeds, honey, or wild yeast.

Dependencies: none. JEI and EMI are optional; both show Cask and Culture Jar recipes with their output chances, plus an info page on finding wild yeast.

Crops

Wild crops grow in patches of 3 plants (configurable).

• Grass (short or tall, broken without shears) has a 1% chance to drop Red Grapes, White Grapes, or Hop Seeds.
• Grapes plant as a bush on dirt. Bone meal speeds them up.
• Hop Seeds plant a vine on dirt. A vine creeps outward up to 3 blocks; about half of the new vines bear hops.
• Trellis (5 sticks, makes 2): right-click a Trellis with grapes or hop seeds to plant it. Right-click a hops vine with a Trellis to train it. A ripe plant climbs into empty Trellises stacked above it, up to 4 high, and each level can be harvested.

Wild Yeast

Wild Yeast can ferment anything in a Cask, but slowly. Tame it first.

Culture Jar

Crafted from paper over five glass in a U shape (_P_ / G_G / GGG).

1. Right-click with one yeast to add a starter.
2. Right-click with a feed. The jar bubbles while it works and sparkles when it's ready.
3. Right-click to collect the yeast.

Right-click at any time to see what the jar needs; the jar fills and changes color as it works. Sneak and right-click with an empty hand to take back a starter that hasn't been fed.

Bottled feeds return their glass bottle.

Cask

Crafted from a barrel and a glass bottle. The Cask holds a 16-bottle batch.

1. Fill it with up to 16 bottles of one base.
2. Add yeast. Once nothing more can be poured and there's enough yeast, the Cask is corked and starts fermenting.
3. When it's done, add empty bottles to draw off the drink.

Hover over the tank to see what it contains, what it's waiting for, and how long is left.

Fermentation time (whole batch):

Lees: one yeast for each yeast pitched, rolled per batch:

Hoppers insert base, yeast, and bottles from any side and extract only the brew and the lees. A comparator reads how full the Cask is. Breaking a Cask drops its items but spills the liquid.

Drinks

Each drink gives 2 hunger, can be drunk on a full stomach, stacks to 16, and returns its glass bottle.

Any drink has a 20% chance of 10 s of Nausea. Durations are configurable.

Crafting Recipes

Configuration

Config file: config/fermented-common.toml

Data Packs

All Cask and Culture Jar recipes are data-driven. Place recipe files in:

data/
└── <namespace>/
    └── recipe/

Times are in ticks (20 per second). A Cask recipe's time is for the whole batch.

Fermenting (Cask)

{
  "type": "fermented:fermenting",
  "base": { "item": "fermented:red_grape_must" },
  "yeast": { "item": "fermented:wine_yeast" },
  "result": { "id": "fermented:red_wine_bottle", "count": 1 },
  "ferment_time": 3600,
  "byproducts": [
    { "item": { "id": "fermented:wine_yeast", "count": 1 }, "weight": 9 },
    { "item": { "id": "fermented:mundane_yeast", "count": 1 }, "weight": 1 }
  ]
}

Culturing (Culture Jar)

{
  "type": "fermented:culturing",
  "starter": { "item": "fermented:mundane_yeast" },
  "feed": { "tag": "fermented:grape_musts" },
  "results": [
    { "item": { "id": "fermented:wine_yeast", "count": 2 }, "weight": 2 },
    { "item": { "id": "fermented:mundane_yeast", "count": 2 }, "weight": 1 }
  ],
  "culture_time": 2400
}

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