![]() ![]() Then with the help of a flashlight, you can read the message clearly. ![]() You can use a glow in the dark paint which is easily available in the market. Due to the changed color, the message is suddenly visible. This acid reacts with the baking soda and changes its color. The grape juice concentrate consists of an acidic component. Smear the grape juice on the message to reveal its contents.Now to reveal the message, take some grape juice concentrate.You will notice that the page appears to be completely clear and the message is not visible to anyone.Use a paintbrush or a Q- tip to write whatever you want on a sheet of paper.Now blend both the baking soda and water together properly.Take ¼ cups of baking soda and ¼ cups of water.So let us start the procedure of making the invisible ink. Yes, you read right! You can make your own invisible spy ink with nothing more than a bunch of items commonly available in the kitchen of almost every house. There is more than one way to get the invisible ink. Invisible ink is an excellent method to send messages in secrecy. There are many ways in which you can communicate with each other secretly like spies. For this, you must know a secret language and how to draft secret messages. One of the most primary rules of being a spy is to know how to communicate secretly. ![]()
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