
Melting down old candles is a great way to reuse leftover wax and create a sustainable crafting project. It's a fun and cost-effective way to make unique candles and reduce waste. The process involves gathering candle remnants, melting the wax, and pouring it into a new mould with a wick. This can be done using a double boiler, which ensures even melting without direct contact with the heat source, reducing the risk of overheating or fire hazards. People can also get creative by mixing different colours and scents to make personalised candles.
| Characteristics | Values |
|---|---|
| Why melt down old candles? | To reuse the wax and create new candles, reducing waste and saving money |
| When to melt down old candles | When the wick runs out and there is leftover wax |
| How to melt down old candles | Use a double boiler, melt wax slowly over low heat, stir occasionally, choose the right wick, and pour into a mold |
| Tools needed | Heat-resistant bowl or pot, pan, water, stove, knife or spoon, aluminum can, saucepan, tongs, container for new candle, wick, pencil/toothpick/ Popsicle stick |
| Tips | Use simple candle designs, experiment with colors and scents, be creative with leftovers, and practice patience when removing candles from molds |
| Other uses for melted wax | Fire starters, wax melts, votive candles, or scented sachets |
| Alternative methods | Place the candle in the freezer and use a knife to pop out the wax, or place the jar in a bucket of very hot water and let the wax float to the top |
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What You'll Learn

Use a double boiler to melt wax
Melting old candles is a great way to repurpose wax remnants and create new candles. Using a double boiler is an efficient and safe method for melting wax. Here is a step-by-step guide on how to use a double boiler to melt wax:
Prepare the Double Boiler
A double boiler is a simple setup that uses two containers, one nested inside the other. The inner container holds the wax, while the outer container holds water. The water is heated, creating steam that melts the wax in the inner container. You can use a large saucepan or pot as the outer container and a heat-resistant bowl, smaller saucepan, or a clean coffee can as the inner container.
Prepare the Wax
Before melting, gather your old candle remnants and remove as much dirt and old wicks as possible. You can scrape the wax out of its container and directly into the inner boiler, or you can melt the wax while it's still in its original container. If you choose the latter, be sure to heat the old candle container gently to make it easier to extract the wax.
Melt the Wax
Fill the outer container with water about halfway and place it on the stove over medium-low heat. Place the inner container with the wax inside the outer container. As the water boils, the steam will heat the wax, melting it slowly. It is important to heat the wax slowly and at a low temperature to avoid overheating or burning. Do not leave the double boiler unattended during this process.
Add Colour and Fragrance (Optional)
Once the wax has completely melted, you can add colour and fragrance if desired. Stir in your chosen dye thoroughly. If adding a fragrance, remove the wax from the heat first, then gently stir in your chosen essential oil or fragrance oil. Most wax should be heated to 185 degrees Fahrenheit before adding fragrance, but always check with your wax supplier for specific instructions.
Final Thoughts
Using a double boiler to melt wax is a safe and effective method that reduces the risk of overheating or fire hazards. It is important to use heat-resistant materials and always monitor the temperature to avoid burning the wax. Additionally, never use the same pan for melting wax and preparing food. By following these steps, you can safely melt your old candle wax and create new candles or other creative projects.
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Prepare a new candle container
To prepare a new candle container, you can use a variety of items, such as an old candle jar, a crystal votive holder, a teacup, a miniature vase, a ramekin, a crystal cup, or a short mason jar. You can find these items at antique stores and thrift stores.
Before placing the wick, ensure your container is clean. To clean old candle jars, boil water and pour it into the container. Let it sit until the wax floats to the top. Once the wax has cooled, remove it and wash the container.
When choosing a container, consider the size and shape. The container should be large enough to hold the desired amount of wax and have a shape that will allow the wax to harden evenly. It should also have a wide enough opening to easily place the wick and pour in the melted wax.
Once you have selected and cleaned your container, it is time to place the wick. Most wicks come with double-sided stickers. Remove one side of the sticker and place it in the centre of the container. You can use a pencil, toothpick, or popsicle stick to keep the wick straight and centred while pouring the wax.
If your container cannot be heated, brace the wick with pliers or use sticky wick tabs to secure it to the bottom of the container. This will prevent the wick from floating around as the candle burns.
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Choose the right wick
When making candles from old candles, it’s important to choose the right wick. The type of wick you use will depend on the type of wax, the size of your candle, and the container you're using.
Cotton wicks are the most common and work well for most candles. However, there are many other types of wicks to choose from. For example, wooden wicks are great for larger candles as they burn slower and produce a crackling sound. If you're using a natural wax, such as soy or beeswax, consider using a wooden wick or a wick made from natural fibres such as paper or cotton. These wicks are sustainable and will create a clean burn.
If you're using a container with a small opening, you'll need to use a thinner wick. A thicker wick will not fit through the opening and will be more difficult to light. Conversely, if you're using a container with a large opening, you can use a thicker wick. A thicker wick will create a larger flame and will burn your candle faster. It's important to consider the size of the wick in relation to the size of the candle. If you're making a large candle, you'll need a thicker wick. For a smaller candle, a thinner wick will work better.
You can also create your own wicks by cutting thin strips of cotton or paper. This is a great option if you're looking for a custom size or shape. When creating your own wicks, make sure to prime them by soaking them in wax. This will help them burn more efficiently.
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Add colours and scents
Adding colours and scents to candles made from melted-down old wax is a fun way to get creative and make unique candles. Here are some tips on how to do it:
Adding Scents
When melting down old candles to create a new one, it's important to keep the underlying smell of the recycled wax in mind. Different scents may or may not play well together. For example, a pumpkin pie candle and an apple pie candle will probably combine to smell like baked goods, whereas a pumpkin pie candle and a floral candle might be overpowering and confusing. If you're only recycling unscented candles, you can skip this consideration.
Once your wax is melted, you can add essential oils or fragrance oils to introduce a new scent. Commercial fragrance oils have stronger scents, so only use 1 fluid ounce (30 mL) for every 1 pound (450 g) of wax. Alternatively, you can use 5-10 drops of essential oil, like citronella oil, to achieve a more subtle scent. If you want to add natural scented ingredients like dried flowers, crushed herbs, cinnamon sticks, or cloves, do so after pouring the wax into its container.
Adding Colours
To add colour to your candle, use candle dye. You can add 3-4 drops of candle dye at a time to the melted wax and fragrance mixture, stirring well to distribute the colour evenly. To test the colour, dip a piece of white paper into the wax and let it dry. Avoid using crayons or food colouring to dye your candle wax, as these will not bond with the wax and may clog the wick.
Combining Colours and Scents
When combining colours and scents, it's important to consider how the different elements will work together. For example, a pumpkin pie-scented candle might pair well with an orange or brown colour, while a lavender-scented candle might be enhanced by a purple or blue hue. You can also get creative and experiment with unexpected combinations. Just remember to stir the mixture well to ensure the colour and scent are evenly distributed.
By following these steps and getting creative with colours and scents, you can make unique and personalised candles from your old wax.
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Freeze the candle to remove wax
Freezing is a convenient and safe method to remove wax from old candles. It is also a good alternative to melting methods, which can be time-consuming and may not work well for harder waxes.
To freeze the candle, simply place it in the freezer for at least 3-5 hours, or preferably overnight. The wax will shrink and loosen from the container, making it easier to remove. If you are in a hurry, even 20 minutes in the freezer will do the trick for some candles. However, the colder the temperature, the better the results.
Once the candle is frozen, take it out of the freezer and gently poke at the edges of the wax with a spoon or a butter knife to loosen it. Be cautious when using a knife, especially with glass containers, as the glass can become brittle and crack. If you are dealing with thicker wax, you may need to apply a little more force.
If the wax is still stuck to the container, put the candle back in the freezer for another hour or two. For wide-mouth candles, you can also try flipping the candle upside down and letting gravity do the work. If there are any small pieces of wax remaining, use a spoon to gently scrape them off.
After removing the wax, you can clean the container by dipping a paper towel into household cooking oil and wiping the inside of the jar. The oil will help dissolve any remaining wax, which can then be wiped away.
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Frequently asked questions
To melt the candle wax evenly and safely, use a double boiler. This is a heat-resistant bowl or pot placed over a pan of boiling water. The steam from the boiling water will slowly melt the wax.
You can use a variety of containers to melt down old candles, such as an old candle container, a crystal votive holder, a teacup, a miniature vase, a ramekin, or a crystal cup.
You can use a knife or spoon to remove the leftover wax from your old candle. Some people find it easier to place the candle in the freezer first, but it can also be done at room temperature.











































