How to remove wax from jars so you can reuse them easy:

In a kettle or small sauce pan bring about two cups of water to a boil. CAREFULLY pour the water into the jar and allow it to sit. The water will melt the wax and the wax will start to float to the top of the water surface. Allow the water and wax to cool completely-you will end with a wax disc at the top of the water line. Pour out the water and the wax will come out easily.