Step 1
Carefully measure out 5 teaspoons of soot into your mixing pot.
Step 2
Add 2 teaspoons of gum to the soot and stir gently (the gum will help the ink to stick to the paper).
Step 3
Add 4 teaspoons of vinegar to the mixing pot.
Step 4
Mix the soot, gum and vinegar together until you have a smooth and fairly runny (and inky) mixture.Step 5
Well done! You have now made your Roman ink. Now have a go at using it to write messages to your friends!