Create your own top-secret notes with this simple technique using grape juice and baking soda.
WHAT YOU’LL NEED TO MAKE INVISIBLE INK
- 1 tablespoon of baking soda
- ¼ cup of water
- Grape juice concentrate
- Paintbrush or cotton swab
- Two small bowls
HOW TO WRITE A SECRET MESSAGE WITH INVISIBLE INK
1. Mix the baking soda and water in a small bowl. This is your invisible ink.
2. Dip a finger, cotton swab or paintbrush into the “ink.”
3. Write your message on a piece of light-colored paper.
4. Let it dry completely.
HOW TO REVEAL AND READ AN INVISIBLE INK MESSAGE
1. Lightly paint grape juice concentrate across the paper with a brush.
2. Your message will slowly appear as the juice saturates the paper.