Fermented Spider Eye Recipe Minecraft. When making a fermented spider eye, it is important that the sugar, brown mushroom, and spider eye are placed in the exact pattern as the image below. They can be used to brew potions with negative effects and the potion of invisibility.
Issues relating to "fermented spider eye" Place 1 spider eye on the second box in the second row. As mentioned above, spider eyes can be obtained through killing spiders.