Wetting the corner will let you safely burn the paper without the rest of the sheet catching aflame.
You can use a small lighter, but it won’t give you as much control over the flame. Use caution with an open flame and ask a parent for help if you’re younger.
The soot that forms on the other side can be scratched off with a fingernail, so be careful when handling it.
Use a fan or a blow dryer to speed up the drying process.
Be careful not to burn your fingers if you’re singeing the edges of a smaller piece of paper.
Bunch the towel up in your hand so the heat doesn’t transfer to your fingers when you wipe. Be sure to extinguish the flame right away, or else you’ll burn your whole paper up.
Make your rips oddly-shaped so it doesn’t look uniform. Fire acts unpredictably, so the edge should be random. Look at pictures of burnt paper for ideas on what shape to make your paper.
Hold the paintbrush just above the paper and flick the bristles to create a splatter effect on your paper. This will make smaller dots of color appear later.
The heat reacts with the acid in the lemon juice causing the discoloration on the paper. The same effect can be used to write in invisible ink. [11] X Research source
