Making candles is simple and fun, and double-molded candles can be an interesting twist on traditional candles. If you already know how to make candles, you’re already 90 percent of the way done! For those who are new to candle making, here are the supplies you need:
Double boiler (if you don’t have one, you can make your own by using an old coffee can and placing it in a large pot of boiling water)
Fragrances (if using)
Molds (a smaller one for the core candle, and a larger one for the outer portion)
Paraffin wax with a melting point of 130 to 145 degrees Fahrenheit
Scissors to trim your wick
Spoons (you might want to use old metal spoons, as you’ll be using these to stir hot wax)
Stearic acid (this candle additive helps harden your wax as it cools and also shrinks the wax, making it far easier to remove your finished candle from the mold; it’s available in most crafts and candle making supply stores)
Make sure that you have enough wax for two candles one for a core candle, which will contain the wick and another for the outer portion of the candle. Heat the wax in your double boiler to the appropriate temperature, which is 175 to 185 degrees Fahrenheit. While your wax heats, prepare your molds.
To prepare the molds, you’ll want to make sure the sides are coated with cooking oil, or some other sufficiently non-flammable substance that will make it easy to remove the candle from its mold later. You’ll want to leave the bottom fairly clean, as you’ll need to attach your wick to the bottom if you’re using a wick holder. If you would prefer not to use a wick holder but would like to thread the wick through the bottom of the mold instead, you can coat the entire mold, bottom included, with oil, then stop up the hole with putty once you’ve threaded it through.
If you’re using a wick holder, you can add a dab of hot glue, if you have a glue gun or a bit of hot wax from your double boiler and stick the wick to the bottom of the mold. Be sure to let it cool a bit before you start pouring, or your wick may become unstuck from the bottom of the mold when you begin pouring.
Once your wax has reached 175 to 185 degrees and your molds are prepared, it’s time to put any additives you would like to use into the wax. First, add your stearic acid (usually half to one teaspoon will do), then put in your fragrance, if you’re using any, saving the addition of color for last. The color is always added last because the other additives, particularly the stearic acid, may dilute the color slightly. Be sure not to put in too much color the first time around it’s far easier to add more color than it is to remove it once it’s in!
After your additives are in, let the wax heat again until it is back up to the desired temperature, 175 to 185 degrees. Once your wax has again reached the desired temperature, it’s time to pour the core candle. So, pour the hot wax into the prepared mold for the core candle, being sure to poke relief holes once it has cooled a bit to avoid bubbles.
Once it has hardened (it doesn’t have to be completely cool), do a second pour to fill in the relief holes and level off the top. Be sure that you have an inch of wick sticking out, as you’ll want to make the core candle smaller than the outer part of the candle so the two will bind seamlessly.
Once the core candle has cooled completely, remelt your wax (if you would like your outer candle and your core to be different colors, you can always set aside some of the wax with all the additives, minus the color, then add a different color when you remelt the wax). Because your core candle will have cooled completely, your pouring temperature will be 10 degrees hotter than your core candle pouring temperature, so aim for somewhere between 185 and 195 degrees.
After the wax has reached the pouring temperature, set your core candle in the center of the larger, outer candle mold and pour. Make sure that you pour your wax right to the top of the mold, covering the core candle completely.After the wax