Add an inch of water to a saucepan and bring it to a boil on high heat.Place the melting pot in the boiling water, and reduce the temperature to medium or medium-low (whatever is required to maintain a simmer).
Add a small pinch of candle wax dye to the melting pot. This will result in a pastel shaded wax melt. Add more dye for a brighter shade. You can see how little dye we added in the photo below.
Stir the melting wax and the wax dye together.
Once the wax is liquid, add the thermometer into the melting pot.Heat the wax to 185F.
Step 4: Add essential oil to the wax
Remove the melting pot from the water and place the pot on the scale. Zero the scale and weigh in the essential oils.
Stir the wax and oil together for a good 2 minutes, making sure they're fully combined.
Cool the wax to 110 - 120F.
Step 5: Pour the wax into the mold
Pour the wax into the clamshell mold (or a silicone mold), slowly but steadily.Make sure to place the mold in a location where it won't be disturbed or moved as the wax hardens.
Allow the wax to harden.Your wax melts are complete!
Step 6: Use the wax melts in a warmer
Ideally you should let the wax "cure" for a few days before using the wax melts. This helps the wax and oil to fully combine, and allows the wax to harden.Remove the wax cubes from their mold by pressing on the bottom.
Place 1 to 3 wax melt cubes in the top tray of a wax warmer. (More cubes equals more fragrance!)
Turn on the warmer and allow the delicious smell of your DIY wax melts to fill the room!
TIP:
The liquid wax is a lot darker than it will be when it hardens. To check the "real" colour of your wax melts, put a few drops of wax on a sheet of parchment paper. It should harden within a few minutes and will show you the finished colour of your melt.