The Brew of Ink is a throwable potion that explodes into an explosion of ink when it hits anything, causing blindness to players and monsters in the area of effect. The duration of the blindness is longer the closer to the point of impact. Not all monsters will be affected by blindness, notable exceptions are creatures with no eyes (such as slimes) and powerful demonic entities.

The Brew of Ink is created in a kettle using the recipe found in the book Witchcraft: Brews & Infusions. Into the pot, throw Ink Sac, Quicklime, Oil of Vitriol, Slimeball, Belladonna and Rowan berries.

Wear a Witches Hat (and/or robes) while brewing to get more brews than just three.