Invisible Ink Recipe

Fun invisible ink recipes for making invisible in at home.  Great do it yourself idea for birthday parties.

Lemon Juice
Place lemon juice in a small bowl and write a message on a piece of paper using a small paintbrush.

To read the message hold the paper 6" from a light bulb or iron.  The heat will make the writing appear.

Vinegar or Baking Soda (1 to 1 ratio)

Use a small paint brush to write a note on paper.  Let dry.

To reveal the writing - boil 1/2 a head of red cabbage in 4 cups of water.  Strain the liquid.  Paint or sponge the liquid over the writing to reveal the message.

You can also use grape juice to reveal the message. 

Fun idea to use with our Spy birthday party theme!