Probably Stolen Wine Making Guide

Checked October 29, 2026 · Probably Stolen, Steam build 26284217

You make wine by fermenting BloomBerries with water in a Wine Bottle, and you unlock it through Joe Wild's Retired Winemaker. The game's own fermenting guide gives three rules for better wine: use good water, add yeast, and above all use good berries.

Probably Stolen wine making: the short answer

For what the game is and every guide we publish, start at the Probably Stolen guide hub.

  • Water: High Quality Water or Basewater; not Pure Water.
  • Yeast: optional but strongly recommended; it speeds fermenting up.
  • Berries: two handfuls for high-grade wine, and skip overripe, underripe or moldy ones.

Probably Stolen wine at a glance

Probably Stolen wine at a glance
Field Value
Unlock Joe Wild's Retired Winemaker gives you a Winemaking Starter Kit. Source: In-game text.
You need A Wine Bottle, BloomBerries, water and, ideally, yeast. Source: In-game text.
Quality Berry quality matters most; water quality and yeast also count. Source: In-game text.
Grades Master Vintage, Reserve, Production Wine, Homebrew, Bucket Brew and Undrinkable. Source: In-game text.
Aging Wine has an age in days; an AgeWell adds a day each cycle. Source: In-game text.
Cheap and illegal Synthetic Yeast makes GloomBerry Wine from water alone; it is mildly carcinogenic. Source: In-game text.

How to start making wine

Wine making is unlocked through Joe Wild's network. The Retired Winemaker favor gives you a Winemaking Starter Kit straight away; the retired winemaker then visits the next day and once a week after that, selling winemaking supplies and equipment, and it unlocks the game's winemaking content. Prices and prerequisites are on our Joe Wild network table.

  • Wine Bottle
  • BloomBerry
  • Yeast
  • Super Yeast
  • Yeast Bioreactor
Winemaking items as they appear in the game. In-game art © Questing Goose Studio and tinyBuild.

What you need:

  • A Wine Bottle, "a fancy glass bottle used for fermenting wine" with a built-in airlock.
  • BloomBerries, the berry the wine is made from.
  • Water. The fermenting screen tells you "Not Enough Water To Start Fermentation" if there isn't enough.
  • Yeast, optional. There are three kinds: Yeast speeds up fermentation and improves the brew; Super Yeast "dramatically speeds up" fermentation; and the Yeast Bioreactor is an infinite source of yeast that goes back to your inventory when fermentation starts instead of being used up.

Put the ingredients in and press Start Fermenting. While it works, the bottle shows how many days are left until it's finished. The game also comes with the BloomBerry Wine Fermenting Guide, the source of the rules below.

How to make better wine

The fermenting guide sets out three rules:

  1. Water quality affects wine quality. Use High Quality Water or Basewater. Pure Water lacks the minerals fermentation needs, and lower grades of water greatly reduce wine quality. How water grades work is on our water guide.
  2. Yeast is optional but highly recommended. Without it, wild yeast from the air ferments the wine instead and the results are inconsistent. Standard yeast also greatly speeds fermentation up.
  3. Berry quality is the most important factor. One handful is enough for lower-grade wine; two handfuls are needed for high-grade wine. Avoid overripe, underripe and moldy berries. The best berries for winemaking are usually smaller than normal.

The grades. The game names six grades of wine: Master Vintage, Reserve, Production Wine, Homebrew, Bucket Brew and Undrinkable. The finished bottle is BloomBerry Wine, "a popular alcoholic beverage in both the Upper and Lower Levels".

Probably Stolen BloomBerry: picking and growing it

The fermenting guide includes a BloomBerry Identification page with four states: Normal, Underripe, Moldy and Small. Small is the one to look for: the guide says the best berries for winemaking are usually smaller than normal. Telling berries apart is also part of the game's appraisal tools; see our appraisal guide.

BloomBerries grow from a Bloomberry Seed, "a perennial bush" that doesn't die after fruiting. Keep its water clean for better berries, and use a Hatchet on the planter to clear it. The berry itself is described as "a sweet berry modified for hydroponic growth" and one of the few fruits available in the Lower Levels.

How to age wine

Finished wine has an age shown in days. The AgeWell speeds aging up: it ages items such as wine and cheese by an extra day each cycle, and works overnight when it has power and a finished bottle of wine. Its manual adds that Quality modules give one more day of age per 125 Quality. A fridge doesn't help: it chills drinks to sell for more, but wine is unaffected. Both machines are on our machines guide.

What GloomBerry wine is

GloomBerry Wine "looks like a Homebrew BloomBerry wine but this one is cheap and mildly carcinogenic." It comes from Synthetic Yeast, "an illegal substance that can be used instead of yeast to cheaply produce mildly carcinogenic wine", which needs only water. It is the cheap shortcut, and an illegal one.

Version notes and limits

This page doesn't give how many days fermenting takes, how wine quality is scored or what each grade sells for, because the game doesn't show those numbers as text. We will update it if a patch changes winemaking.

Probably Stolen wine making FAQ

How do you make wine in Probably Stolen?

Ferment BloomBerries with water in a Wine Bottle, adding yeast if you have it. Unlock it with Joe Wild's Retired Winemaker.

How do you make high-quality wine?

Use two handfuls of good berries, ideally small ones, with High Quality Water or Basewater, and add yeast.

Do you need yeast?

No, but the game strongly recommends it: without yeast, wild yeast ferments the wine and the results are inconsistent.

Where do you get BloomBerries?

Grow them from a Bloomberry Seed, a perennial bush; keep its water clean for better berries.

How do you age wine?

Wine ages by the day. An AgeWell adds an extra day each cycle; a fridge doesn't affect wine.

What is GloomBerry wine?

A cheap, mildly carcinogenic wine made with illegal Synthetic Yeast and water.

Sources and version history for this guide: Probably Stolen sources and versions.

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