Turn off the Scentsy warmer and allow the wax to cool and harden at room temperature.
Lift the top of the warmer off the base. This piece is shaped like a small bowl and contains the melted wax from the Scentsy bar.
Place the top of the warmer in the freezer for 15 to 20 minutes. The cold temperature will cause the wax to harden even further as it freezes slightly.
Pry the hardened wax out of the warmer by gently inserting the tip of a butter knife or a spoon under the edge of the wax. If it is completely hardened, it will pop out easily, leaving no residue in the warmer. The wax will be hard and brittle. If it is not, return it to the freezer for another 10 minutes.
Discard the wax disc in the trash if the wax no longer contains any scent. If it has scent remaining, place the disc in a zip-top plastic bag and label the bag with the scent name for later use. To use the wax later, simply place the wax disc back into the top of the warmer and turn the warmer on.