The kids and I love to recycle crayons because its a cheap (or free), easy, fun, and a green project we can all do together. There are different ways to melt the crayons (in molds, or in pots and then poured into molds) and different kinds of molds that can be used to make old crayons new again. When we made crayons to give as gifts recently we used the simply melt in an old cupcake tin way.
The first step step in making old crayons new again is to collect old crayons. We put any broken crayons we have into baggies sorted by color as soon as they become unusable.
And our cupcake tin looking like this-
Then into the oven they go. I placed our cupcake tin into a preheated 250 degree oven.
Warning! The folks over a Crazy Crayons (mentioned later in this post) informed me that the wax in crayons has a flash point of around 350 degrees. Please do not try to rush the melting process by using high temperatures.
It is best to keep the oven around 200/250 degrees to avoid quality loss and fire.
The crayons should be completely melted before removing them from the oven. Which takes around 20 minutes. I pulled mine before a couple of the red pieces were melted and tried to smooth out the surface with my knife, but that left some bubbles which you will see in the finished product pictures below. I learned from my mistake and made sure all the crayon pieces were completely melted in our other batches and they all had nice smooth tops.