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Fermented Spider Eye

A fermented spider eye is an item used to corrupt the effects of certain potions via brewing, and is required to brew potions of Weakness.

Fermented spider eyes can be used to brew potions with negative effects, as well as potions of Invisibility.

Wandering traders occasionally purchase a fermented spider eye for 3 emeralds.

Source: Minecraft Wiki cacheUpdated: 2026-06-12 Open Original

Local game data

Fermented Spider Eye

Bedrock 1.21.100
Typeitem
Stack64
Durability-
Sections3
Canonical IDitem:fermented_spider_eye
Minecraft IDminecraft:fermented_spider_eye
Wiki sourcecached

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Local Data Properties

displayNameFermented Spider Eye
namefermented_spider_eye
id1078
stackSize64