WatercolorSoot / CarbonEasySafety: High Risk
Campfire Charcoal Black
Pluck a chunk of charred hardwood from a cold fire pit — it is pure pigment.
Color
Cool soft black
Binder
Gum arabic + honey
A cold campfire holds free black pigment — the burnt wood is almost pure carbon.
- ▸Pick clean lumps with no ash; ash is grey and weak.
- ▸Grind very fine — coarse charcoal looks gritty on the page.
- ▸Willow gives a cool blue-black, oak a warm brown-black.
Steps
- 01
Brush off ash and break the charcoal into pea-sized chunks.
- 02
Grind in the mortar to the finest possible powder; sift twice.
- 03
Mull with water on a tile until silky.
- 04
Stir in binder and pan up.
Materials3
- — A lump of clean hardwood charcoal from a cold fire (oak, willow, vine work best)
- — Mortar and pestle, fine sieve
- — Gum arabic + honey binder
Safety
Involves caustics, acids, or open flame. Full PPE and trained supervision recommended.
Hazards identified
- Airborne dust — respiratory irritant
- High heat / open flame
Quick checklist
- ☐Wear an N95 / FFP2 mask when handling dry powders
- ☐Mix in a tray to contain dust; wipe surfaces wet
- ☐Keep a Class B fire extinguisher within reach
- ☐Use heat-resistant gloves and a stable, non-flammable surface
- ☐Never leave heated materials unattended
- ☐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
Willow burns to a cool blue-black; oak to a warm brown-black. The same pigment used in cave paintings.