Tyler Brooks
Recycling old candles is a great way to reduce waste and promote sustainability. However, it's not as simple as recycling a plastic bottle. The first step is to check what material the candle is made of, typically glass, ceramic, or tin. If it's glass, it's likely made of borosilicate glass, which is not accepted at most local recycling centres. If it's ceramic or tin, you can take it to a commercial recycling centre. Once you've determined the material, you need to remove the wax. This can be done by placing the candle in the freezer or using the boiling method. After the wax is removed, clean the jar thoroughly and ensure it's impeccably clean before recycling or repurposing it. You can also compost the wax if it's made with natural wax and non-toxic fragrances.
| Characteristics | Values |
|---|---|
| First Step | Check the candle material. Most candles are made of glass, ceramic, or tin. |
| Glass | Borosilicate glass is durable and heat-resistant but not accepted at local recycling centers. Soda-lime glass is recyclable but unsafe when heated. |
| Ceramic | Not accepted at local recycling centers but can be recycled at commercial plants. |
| Tin | Accepted at most local recycling centers. |
| Wax Removal Methods | Boiling water, freezer, stovetop, or using a product like Goo Gone. |
| Wax Disposal | Compost the wax if it's made with 100% natural wax and non-toxic fragrances. |
| Jar Cleaning | Ensure no wax residue remains, as this can contaminate the entire recycling batch. Use soap and water or put it in the dishwasher. |
| Reuse Ideas | Make new candles, use as containers, plant pots, or for storage. |
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What You'll Learn
How to remove wax from a candle jar
There are several ways to remove wax from a candle jar, and most methods do not require any special equipment. Here is a step-by-step guide:
The Freezer Method
Place the candle jar in the freezer overnight or for a couple of hours. The wax will freeze and shrink, making it easier to remove. You can then use a butter knife or a spoon to pop the frozen wax out of the container. If the wax is soft, you can break it into chunks and peel it off the sides of the jar.
The Boiling Water Method
Fill a pot or large metal bowl with boiling water and place it on a heat-safe surface. Place the candle jar in the water, ensuring the water does not get into the jar. The hot water will melt the wax, causing it to float to the top. Allow the water to cool, then remove the jar from the water. Once the wax has hardened, simply pick it out or wipe it away with a paper towel.
The Oven Method
Preheat your oven to 180 degrees Fahrenheit. Line a rimmed baking pan with aluminium foil or parchment paper. Place the candle jar upside down on the pan and put it in the oven. When the wax looks molten, remove the jar and pour out the liquid wax. Wipe the inside of the jar with a paper towel.
The Microwave Method
If you have a microwave-safe jar, you can place it in the microwave for about 30 seconds to soften the wax. Be careful when removing the jar from the microwave, as it will be hot. Simply wipe away the softened wax with a paper towel.
The Hair Dryer Method
For stubborn wax at the bottom of the jar, you can use a hairdryer or heat gun to spot treat the area. Hold the hairdryer with one hand, and use a butter knife or spoon in the other hand to scrape away the wax as it softens.
Once you have removed the wax, you can clean the jar with soap and water or place it in the dishwasher to remove any remaining residue or labels.
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Removing labels and glue from candle jars
Boiling Water
Fill the jar with boiling water and let it sit for 15 minutes. The hot water will help to soften the glue, making it easier to remove the label. After soaking, use a sponge or scrubber to remove any remaining glue and paper. Wash the jar with soap and water to ensure all the residue is gone.
Dishwasher
Place the jar in the dishwasher and run it through 2-3 cycles. The hot water and detergent will help to loosen and remove the label and glue.
Freezer
Place the candle jar in the freezer for a couple of hours or until the wax is frozen. Then, use a butter knife to pop out the frozen wax. This method may not remove the label and glue, but it will make it easier to scrape out the wax.
Baking Soda and Water
Fill a pot with water and bring it to a boil. Add baking soda to the water and stir to dissolve. Submerge the jar in the boiling water for about 10 minutes. Remove the jar from the water and gently peel off the label. Return the jar to the boiling water for another 10 minutes. Use a sponge to remove any remaining adhesive.
Adhesive Remover
You can also use an adhesive remover, such as Goo Gone, to help remove the label and glue. Simply spritz the product onto the label, let it sit for a minute, and then scrub off the label. Wash the jar with warm soapy water to remove any remaining residue.
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What to do with clean, empty candle jars
Clean, empty candle jars can be recycled or reused. Before recycling, it is important to ensure that all wax residue has been removed. This can be done by freezing the jar and using a butter knife to pop out the frozen wax, or by warming the jar to melt and pour out the wax. Boiling water can also be poured into the jar, allowing the wax to float to the top and harden before being removed. Any remaining wax can be scraped out, and the jar can be washed with soap and water. Labels can be removed by soaking the jar in warm, soapy water, using a product like Goo Gone, or by applying a mixture of baking soda and cooking oil.
Once the jar is clean, there are several ways to reuse it. They can be used for storage, such as for herbs, spices, or office supplies. They can also be transformed into decorative pieces, such as planters for succulents or small herbs, candle holders, or centrepieces. Candle jars can also be used to make new candles, by refilling them with wax. It is important to ensure that any scented wax or chemicals are removed before using the jar for food storage.
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How to recycle or compost candle wax
Recycling candle wax is a great way to be environmentally conscious and creative. Here are some ways to recycle or compost candle wax:
Melting Wax Out of Its Container
Before reusing candle wax, it must be melted and removed from its container. To do this, place the candle in a small pot and fill a larger pot with water. Bring the water to a simmer and place the small pot inside. As different types of wax have different melting points, it may take some waxes longer to melt. Once melted, use tongs to remove any old wicks and dispose of them. Alternatively, you can place the jar in the oven at its lowest setting, but be sure to remove any labels or stickers first.
Removing Wax from Labels and Jars
To remove wax from labels and jars, there are a few methods you can try. One is to peel off as much of the label as possible, spritz the remaining paper with a product like Goo Gone, let it sit, scrub off the rest, and then wash the jar in warm soapy water. Another method is to soak the jar in boiling water, which will soften the glue and make the label easier to remove.
Composting Candle Wax
When it comes to composting candle wax, it's important to note that not all candle waxes are compostable. Traditional paraffin wax, derived from petroleum, is not biodegradable and cannot be composted. However, natural waxes like beeswax and soy wax are compostable. If the label on your candle wax indicates that it is made from 100% natural ingredients, it is likely compostable. Scented candles should be avoided for composting as they may contain additives that are not biodegradable. Fragrance-free candle wax can be composted and will typically break down over approximately two months.
Reusing Candle Wax
There are many ways to reuse candle wax. You can make new candles by pouring the melted wax into molds or creating dipped candles. Leftover wax can also be used for various DIY projects, such as making crayons, waterproofing envelopes or jars, creating potpourri, or adding it to homemade soap or lotion. Wax can also be used as a protectant for metal surfaces, a lubricant for stuck zippers, or a polish for sustainable wooden furniture or metal objects.
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Making new candles from old wax
Collecting and Preparing the Wax
First, collect partially used candles or wax scraps and separate them by colour and scent. Use a flat screwdriver or butter knife to cut the wax into small pieces. Remove the wicks and any debris from the wax, and store the wax chunks in sealed bags until you are ready to melt them.
Melting the Wax
When you are ready to make your new candle, set up a double boiler or bain-marie by boiling a kettle and filling a pan about one-third full of hot water. Place the pan on the hob and turn it to the lowest setting. Place a metal melting container or an old candle jar into the pan of water and add your wax. Heat the wax until it melts, stirring occasionally to ensure even melting. If you are using coloured or scented wax, you can add dye or fragrance at this stage to adjust the colour or scent as desired.
Preparing the Mould
While the wax is melting, prepare your mould or container. This could be a jar, glass, tin can, or a more specialized mould for shaped candles. If using a jar, ensure it is clean and dry. For moulded candles, take your wick and insert it into the mould.
Pouring and Setting
Once the wax is completely melted and any additives are fully incorporated, slowly pour it through a strainer into your prepared mould or container. Allow the wax to cool and fully set for at least eight hours. If using a mould, you may need to leave the candle longer, depending on its complexity.
Finishing Touches
After the wax has set, remove the candle from the mould if necessary. Trim the wick to about a quarter of an inch for a cleaner burn and to reduce soot marks. Your new candle is now ready to use or gift!
Remember, anything that comes into contact with the wax should not be used for food preparation or consumption in the future. Always be careful when handling hot wax, and do not leave it unattended. Enjoy creating your new candles from old wax!
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Frequently asked questions
The first step in recycling old candles is to check what material they are made of. Most candles are made of glass, ceramic, or tin. Once you've identified the material, you can check with your local recycling center or commercial recycling plant to see if they accept that material for recycling. If your local recycling facilities accept candle jars, clean them thoroughly and remove any leftover wax before recycling. You can reuse the jars for new candles or as containers.
There are a few methods to remove wax from candle jars. One method is to place the candle jars in the freezer for a couple of hours until the wax is frozen, then use a butter knife to pop the wax out of the container. Another method is to boil water and pour it into the jar, letting the wax float to the top. Wait for the water to cool, then pick out the hardened wax.
Yes, depending on the type of wax, you can compost the leftovers. If the candle wax is made with 100% natural wax (such as soy, beeswax, or coconut) and non-toxic fragrances, you can compost it.
Old candle jars can be reused in various ways. You can use them as storage containers for items such as pens and pencils, or you can make new candles by purchasing spare wicks and jars and melting the leftover wax.
Yes, there are eco-friendly and reusable candle options available. These include candles made from coconut wax, which can be pet-safe, paraffin-free, paraben-free, sulfate-free, phthalate-free, and cruelty-free.
