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How to Craft Fermented Spider Eye in Minecraft

Fermented Spider Eye in Minecraft, drawn from the game's own item texture. Brewing negative effect potions (Weakness, Harming, Slowness, Invisibility). Minecraft has used the name Fermented Spider Eye since 1.0.

Stand at a Crafting Table with 1 Spider Eye, 1 Brown Mushroom, and 1 Sugar and you can make a Fermented Spider Eye. The grid returns 1 Fermented Spider Eye.

Fermented Spider Eye Item ID and Give Command

The item ID for Fermented Spider Eye is minecraft:fermented_spider_eye. In commands the namespace may be left off, so fermented_spider_eye works too. Checked against Minecraft Java 26.2.

Give yourself one
/give @p fermented_spider_eye
Give a full stack of 64
/give @p fermented_spider_eye 64
Give it to a named player
/give Steve fermented_spider_eye 1

Cheats have to be on for Fermented Spider Eye to appear this way, and the same command works on Bedrock Edition, where the name is written the same.

Overview

Fermented Spider Eye is used to invert or corrupt potion effects, creating potions with negative effects. Fermented Spider Eye uses a shapeless recipe, so the ingredients can go in any cells of the grid as long as all of them are present.

Minecraft has used the name Fermented Spider Eye since 1.0, the oldest release whose language file lists it.

The materials come together from a few sources: you will be working with spider eye (kill spiders), brown mushroom (found in dark areas), and sugar (craft from sugar cane).

The Full Stack Sum

Per craft 1 brown mushroom buys 1 fermented spider eye; per stack 64 buys 64. On top of that: 64 spider eyes. Craft 64 empties the box exactly.

Materials Needed

ItemAmountWhere to Find
Spider EyeSpider EyeSpider Eye1xKill spiders
Brown MushroomBrown MushroomBrown Mushroom1xFound in dark areas
SugarSugarSugar1xCraft from sugar cane

Fermented Spider Eye needs Spider Eye (kill spiders), Brown Mushroom (found in dark areas), and Sugar (craft from sugar cane), worked together at a Crafting Table.

The Full Chain

1 Sugar Cane makes 1 Sugar, the one part of this you craft rather than gather. All in: 1 Spider Eye, 1 Brown Mushroom and 1 Sugar Cane.

  1. 1
    Sugar CaneSugar CaneSugarSugarSugar
  2. 2
    Fermented Spider EyeFermented Spider EyeFermented Spider Eyethis page

Gather this first

Spider EyeSpider EyeSpider EyeBrown MushroomBrown MushroomBrown MushroomSugar CaneSugar CaneSugar Cane

Step-by-Step Instructions

  1. 1

    Spider EyeSpider EyeSpider EyeBrown MushroomBrown MushroomBrown MushroomSugarSugarSugar

  2. 2

    Fermented Spider Eye

Minecraft crafting recipe for Fermented Spider Eye: 1 x Spider Eye, 1 x Brown Mushroom, 1 x Sugar in a crafting table, making 1 Fermented Spider Eye.

Tips & Notes

  • Cell positions do not matter here: drop Spider Eye, Brown Mushroom, and Sugar anywhere in the grid and Fermented Spider Eye appears.
  • Shopping list: 1x Spider Eye, 1x Brown Mushroom, and 1x Sugar. Plan the Spider Eye first: kill spiders.

Uses for Fermented Spider Eye

  • Brewing negative effect potions (Weakness, Harming, Slowness, Invisibility)

View detailed item stats, durability and properties for Fermented Spider Eye on the Astroworld Items Database.

Frequently Asked Questions

What do I need to craft a Fermented Spider Eye in Minecraft?
The list for a Fermented Spider Eye is short: 1 Spider Eye, 1 Brown Mushroom and 1 Sugar, worked at a Crafting Table. Place them in the grid in any arrangement, and one craft produces one Fermented Spider Eye.
What do you need to make a Fermented Spider Eye from scratch?
Counting all the way down, a Fermented Spider Eye comes to 1 Spider Eye, 1 Brown Mushroom and 1 Sugar Cane, spread over 2 crafts.
Where do you find the materials for a Fermented Spider Eye?
The materials for a Fermented Spider Eye each come from somewhere different. Spider Eye: kill spiders. Brown Mushroom: found in dark areas. Sugar: craft from sugar cane.
How many Fermented Spider Eyes do you get from one craft?
The Fermented Spider Eye recipe makes one Fermented Spider Eye per craft.
What is the item ID for Fermented Spider Eye in Minecraft?
The Fermented Spider Eye item ID is minecraft:fermented_spider_eye, and in a command you can drop the namespace and write fermented_spider_eye on its own. Checked against Java 26.2.
Can you farm everything you need for a Fermented Spider Eye?
Fermented Spider Eye needs nothing you have to go find: spider eye from spiders, brown mushroom from mushrooms that spread in the dark, and sugar from sugar cane. Set those up once and you can keep making fermented spider eye.
What is the give command for Fermented Spider Eye?
The command for Fermented Spider Eye is /give @p fermented_spider_eye. Add a number for more than one, so /give @p fermented_spider_eye 64 hands you a full stack, and it only runs with cheats enabled.
Is the Fermented Spider Eye recipe the same in Java and Bedrock Edition?
It is the same recipe on both: 1 Spider Eye, 1 Brown Mushroom and 1 Sugar at a Crafting Table gives you a Fermented Spider Eye, in the layout shown above, one at a time.
Does it matter where you put the ingredients for a Fermented Spider Eye?
No, a Fermented Spider Eye is a shapeless recipe, so 1 Spider Eye, 1 Brown Mushroom and 1 Sugar can go in any slots you like. Only the set of ingredients is checked, not their arrangement.
How many Fermented Spider Eyes fit in one stack?
A Fermented Spider Eye stacks to 64, so a full inventory of 36 slots holds 2304 of them.
What version of Minecraft added the Fermented Spider Eye?
The name Fermented Spider Eye goes back to Minecraft 1.0, and no older release we can read uses it. The recipe file cannot narrow that down, because recipes only became separate files in 1.12. The Fermented Spider Eye recipe above matches the current release.

Sources

Grid, ingredients and yield
1 Spider Eye and 1 Brown Mushroom and 1 Sugar in, 1 Fermented Spider Eye out, Crafting Table. Java 26.2, .
That Bedrock agrees
Bedrock 1.26.40.05, same 3 ingredients.
How far back it goes
The name appears in Minecraft Java 1.0 and in nothing older. From all 163 released Java clients, rd-132211 to 26.2.
That the ingredients come back
What drops, what villagers trade and what farms regrow in Minecraft Java, followed through the recipes to see what those ingredients can be turned into.
Stack size
The Astroworld Items Database, built from the same jar.
The recipe book unlock
What unlocks it in the recipe book. Java 26.2.
The stack sum
Counted, not played: 1 Fermented Spider Eye per craft against the stack size.

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