
Candles are a great way to create a cosy atmosphere and fill your space with your favourite scent. However, candle tunneling can be a common issue, where the candle burns down its centre, leaving hard wax around the outside. Not only does this look unsightly, but it also reduces the burn time and affects the scent throw. Luckily, there are several ways to fix and prevent candle tunneling. This includes using a hairdryer on high heat to melt the top layer of wax, creating a foil collar to concentrate the flame's heat, and ensuring your candle is on a level surface to prevent uneven melting. With these tips, you can ensure your candles always burn evenly and you get the most out of your purchase.
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What You'll Learn

Use a hairdryer on high heat to melt the top layer of wax
If you're looking for a quick fix to level your candle, grab your hairdryer and follow these steps:
Firstly, ensure that the surface of your candle is free from any dust or debris by wiping it down with a paper towel. This will ensure no dirt gets stuck in the wax as it melts. Next, turn on your hairdryer and set it to high heat. Hold the hairdryer about 6 inches above the surface of the wax. You want to ensure that the hot air is evenly distributed across the top of the candle.
As the wax begins to melt, you can use a wick dipper or a toothpick to gently encourage any unmelted wax on the sides to melt too. Be careful not to let the wax get too hot, as this could cause it to blow everywhere. If you notice the wax starting to melt too quickly, simply adjust the heat setting on your hairdryer to a lower temperature.
Continue holding the hairdryer over the candle until the wax has liquified evenly across the top surface. You may need to move the hairdryer around gently to ensure that all areas of the wax are melted evenly. Once you're happy that the wax is level, simply allow it to cool and solidify again, and your candle will be as good as new!
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Wrap tin foil around the candle to concentrate heat
Wrapping tin foil around a candle is a great way to level a candle that has burnt unevenly. This method is especially useful for more serious cases of candle tunneling, where the candle burns down its center, leaving hard wax around the outside.
To begin, light your candle. Then, carefully wrap a layer of foil around the top of the candle, creating a domed lip with a hole in the top. This step is crucial as it ensures that the heat stays concentrated within the candle, melting the rim of hard wax on the sides. The tin foil reflects heat back towards the glass, increasing the temperature inside enough to melt the top layer of wax.
It is important to note that the foil should cover the top of the candle as much as possible, with a small hole for the flame, to effectively trap the heat inside and facilitate the melting of the wax on the sides. This technique is a temporary solution, and the foil can be removed once the wax has melted and smoothed.
While this method is effective, it is important to exercise caution as the foil can get hot. Additionally, it is recommended to blow out the candle before removing the foil to avoid any potential hazards.
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Place in the oven at 175°F for 5 minutes
To level a candle, one of the methods is to place it in the oven. Here is a step-by-step guide to doing it:
Firstly, preheat your oven to 175°F (79-80°C). This temperature is ideal as it is warm enough to melt the wax and level the candle's surface without disturbing its vessel. It is recommended to warm up the oven completely before placing the candle inside to prevent the wax from melting too much.
While the oven is preheating, get your candle ready. Place the candle in the middle of a cookie sheet or a baking sheet. This will make it easier to handle the candle when placing it in the oven and taking it out.
Once the oven has reached the desired temperature, carefully put the candle inside. Set a timer for 5 minutes. Keep an eye on the candle while it's in the oven. You want the wax to melt and level out, but be careful that it doesn't start bubbling or smoking.
After 5 minutes, remove the candle from the oven using oven mitts or a towel to protect your hands from the heat. If you notice any excess wax that has flowed over the wick, use a butter knife to cut it away and discard it.
Finally, allow the candle to cool completely before relighting it. This may take several hours, so be patient. Once the wax has hardened, your candle should be levelled and ready to be enjoyed again.
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Trim the wick to 1/4 inch
Trimming the wick of a candle to 1/4 inch is an important step to ensure a clean, even, and fragrant burn. It also increases the candle's lifespan and reduces the risk of fire hazards.
Firstly, ensure that the candle is completely cool and not lit. Use a wick trimmer or a sharp pair of scissors to trim the wick to 1/4 inch. Cut the wick straight across, not at an angle, for a cleaner burn. Dispose of the excess wick in a trash can and avoid leaving it in the candle wax.
Trimming the wick to 1/4 inch helps prevent the candle from burning too quickly, which can shorten its lifespan. It also helps to prevent soot buildup. A wick that is too long can cause the candle to burn too hot, leading to the production of soot. Soot buildup can damage your candle and negatively impact your indoor air quality.
Trimming the wick to the correct length also helps to reduce the risk of fire hazards. A long wick can cause the candle flame to become too large, increasing the risk of a fire. Trimming the wick helps to ensure that the flame is at a safe height.
Overall, keeping the wick trimmed to 1/4 inch is an easy and quick step that can help to prolong the life of your candle and allow for the cleanest burn possible.
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Burn for 3-4 hours on the first light
Burning your candle for 3-4 hours on its first light is crucial to prevent candle tunneling, which is when a candle burns down its center, leaving hard wax around the outside. This not only looks unsightly but also means you're not getting the full burn and scent from your candle.
The first burn is the most important as it establishes the "'memory ring'", ensuring the candle burns evenly in future uses. Wax has a "muscle memory" and will burn in the same pattern every time. Therefore, it is important to burn your candle for long enough on its first light to allow the wax to melt all the way to the edges of the jar. This will prevent the wax from building up around the sides of the container, which can be a waste of your candle.
The ideal duration for the first burn depends on the size of your candle. It is recommended that candles burn for one hour for every inch in diameter of the candle size. For example, a candle that is 2 inches across should burn for 2 hours, and a 3-inch candle should burn for at least 3 hours. Burning your candle for 3-4 hours on its first light is a good guideline to ensure the wax melts fully to the edges, creating an even burn for future uses.
If you forget to let the wax pool reach the edge on the first burn, you can fix minor tunneling by using a hairdryer or oven to melt the top layer of wax. Simply blast the top of the candle with a hairdryer on high heat, or place the candle in an oven set to 175°F for about five minutes. You can also try the foil method for more serious tunneling. Light your candle and carefully wrap a layer of foil around the top, creating a domed lip with a hole in the top. This concentrates the heat within the candle, melting the rim of hard wax on the sides.
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Frequently asked questions
To check if your candle is burning evenly, observe if the melt pool extends to the edge of the jar. The flame should be calm and steady, and the unmelted layer of wax underneath should be smooth and level.
An unevenly burning candle could be due to a variety of reasons, such as an improperly sized wick, cheap candles with poor wax composition, or drafty conditions. Airflow can also cause the wax to melt faster on one side.
There are several ways to fix an uneven candle, or candle tunneling, as it is commonly referred to. You can use a hairdryer on high heat to melt the top layer of wax and smoothen the surface. Alternatively, you can use the foil method, where you wrap a layer of foil around the top of the candle, creating a dome with a hole for the wick. This concentrates the heat and helps melt the hard wax on the sides. Another method is to place the candle in an oven set to 175°F for about five minutes to allow the wax to melt and level out.
To prevent your candle from burning unevenly, or tunneling, ensure it is placed on a level surface. For the first burn, let the candle burn for three to four hours to allow for even wax pooling. Trim the wick to about a quarter of an inch before lighting the candle.
After blowing out your candle, you can pour the excess wax into a mould to create a new candle. You can also use a wax warmer to melt the wax and enjoy the fragrance without lighting the candle.









































