PlantModerateSafety: High Risk
Pomegranate Rind Tannin
Used for centuries in Persian and Indian manuscripts.
Color
Yellow-tan; black with iron
Yield
≈ 200 ml
Shelf life
2 weeks refrigerated
Boil pomegranate rinds in water to extract a rich tannic golden ink.
- ▸Like oak galls, the rinds are full of tannin.
- ▸Add iron-vinegar to shift it from gold to deep grey-black.
- ▸Naturally lightfast — used in old Persian manuscripts.
Steps
- 01
Simmer rinds 1 hour; strain.
- 02
Reduce liquid until concentrated.
- 03
Use as warm yellow on its own, or add iron-vinegar for a permanent black.
Materials3
- — Rinds of 2 pomegranates, dried and chopped
- — Water to cover
- — Optional: rust-vinegar for black
Safety
Involves caustics, acids, or open flame. Full PPE and trained supervision recommended.
Hazards identified
- Acidic / corrosive etchant
Quick checklist
- ☐Wear goggles, apron, and acid-resistant gloves
- ☐Always pour acid into water, not the reverse
- ☐Neutralize and dispose per local hazardous-waste rules
- ☐Work in a ventilated area; keep food and drink out of the studio
- ☐Read each material's safety data sheet (SDS) before starting
- ☐Have water, soap, and a first-aid kit accessible
Heuristic guidance derived from listed materials. Always consult each material's safety data sheet (SDS) and a qualified instructor before attempting.
Notes
Very high tannin content — pairs perfectly with iron mordants.