consumable$10–15used in 2 side quests
Alum powder (aluminum sulfate or potassium aluminum sulfate)
White crystalline powder that chemically bonds plant dyes to fabric, making colors permanent and wash-resistant. Without it, natural dyes rinse out after the first wash.
What to look for
- 1Food-grade potassium alum (safer for skin contact than aluminum sulfate)
- 2Fine granulated texture dissolves easily in water
- 3At least 4 oz for multiple dyeing sessions
- 4Resealable packaging to prevent moisture absorption
Skip
- Large restaurant-size quantities unless teaching workshops regularly
- Aluminum sulfate if doing skin-contact items like scarves
Used for: Mordanting fabric before natural dyeing · Making botanical prints permanent · Preparing fiber for plant-based colors · Teaching dye workshops
Side quests that use it
Pick the adventure first; the gear follows.

