Ben Carter
Candle tunneling is a common problem that occurs when a candle isn't burned carefully, resulting in a hole forming down the center and leaving unused wax at the edges. This usually happens when a candle is not burned long enough during its first use, or when the wick is too small to generate enough heat to melt the wax at the edge. To fix this issue, you can melt the outer wax surrounding the tunnel and make the surface even again. This can be done by using a hair dryer or heat gun, or by wrapping the candle in aluminum foil to increase the heat around it.
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What You'll Learn
Use a hair dryer or heat gun to melt the wax
If you want to melt the edge of a candle with a hair dryer or heat gun, you'll need to be careful and patient. Firstly, if the candle is in a container, it's important to trim the wick and remove any debris inside the tunnel. Next, turn on your hair dryer or heat gun, and slowly move it closer to the candle, being careful not to blow out melted wax. For a hair dryer, use a low speed and high heat setting. For a heat gun, a low setting should be sufficient.
Hold the hair dryer or heat gun at an appropriate distance from the candle, and gently heat the top surface. You can carefully scrape at the unmelted wax on the sides with a wick dipper or small metal spatula to help it melt faster. Continue heating until the entire top surface of the wax has completely melted and smoothed over. This may take several minutes, depending on the heat of your device, so be patient.
If you're using a hair dryer, you can also try blasting the top of the candle with air on high heat. Simply hold the airflow over the top of the candle until the top layer of wax has melted and smoothed. This method works best if your candle has just started to tunnel, so you can prevent it from getting worse.
Remember to always wear eye protection and clothes that can be washed if wax gets on them.
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Wrap the candle in foil to reflect heat
Wrapping a candle in foil is a clever way to fix candle tunnelling and ensure the candle melts evenly. Candle tunnelling occurs when the wick burns down the centre of the candle, creating a hole in the middle and leaving a ring of unmelted wax around the sides.
To prevent candle tunnelling, you can wrap a piece of aluminium foil around the edges of the candle, ensuring that the foil overlaps at the top. The foil should hang over any built-up wax areas, but it is important to leave an opening in the centre for the wick to burn properly. The flame's heat will then reflect off the foil, melting the wax around the sides of the candle.
It is recommended to let the candle burn for 2-3 hours to allow the wax to melt and even out. However, it is important to note that the size of the candle may impact the effectiveness of this method. For larger candles, ensure that the flame is strong enough to create sufficient heat to melt the wax.
While this foil trick is a handy solution, it is a temporary fix, and you may need to repeat the process a few times to achieve the desired results.
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Burn for longer to melt the entire surface
Burning your candle for longer periods during its first use is a critical step in preventing candle tunnelling and ensuring the wax melts evenly to the edges. Candle tunnelling occurs when a candle is not burned carefully, resulting in a hole forming down the centre, leaving unused wax at the edges. This happens when the wick burns straight down the middle, instead of creating a pool of melted wax across the entire surface.
The first burn of a new candle is the most important. It is recommended that you burn your candle for at least two hours during its first use, or one hour per inch of diameter. This will ensure that the wax melts evenly to the edges, preventing the formation of a deep well or "tunnel" in the centre. If you only burn the candle for a short period during its first burn, you will create a small pool of wax, and subsequent burns will only burn to the same diameter, thus creating a tunnel.
Pillar candles, in particular, require longer burn times, otherwise, they are more likely to tunnel. For safety, it is recommended that you burn your candle for a maximum of four hours at a time, as longer periods can cause the wicks to drift and move if the melt pool becomes too deep.
If your candle has already started tunnelling, you can try to melt the outer wax surrounding the tunnel to make the surface even again. However, if the sinkhole is severe, it may be difficult to salvage.
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Use multiple wicks to distribute heat evenly
When a candle doesn't burn evenly, it can cause something called "candle tunneling". This is when a deep well or "tunnel" forms in the centre of the candle, leaving a ring of unburned wax around the edge. This can be caused by a number of factors, including an improperly sized wick, cheap wax composition, or drafty conditions.
To prevent candle tunneling, one effective method is to use multiple wicks. Multiple wicks distribute heat more evenly across the surface of the wax, ensuring that the entire surface melts uniformly and reducing the chances of tunneling. This is especially effective for larger candles, which have a broader surface area, further promoting even melting.
When creating a multi-wick candle, it is important to space the wicks out evenly from each other and the sides of the vessel. An easy formula to remember is to add a wick for every extra inch over 3 inches in diameter. For example, a 4-inch vessel would require 2 wicks, a 5-inch vessel would require 3 wicks, and so on. It is also important to choose the right type of wick for your wax type, such as cotton, hemp, or wood.
In addition to using multiple wicks, there are other methods to prevent candle tunneling. One popular method is to create a foil collar around the candle, leaving a small window for the wick. This helps the flame work harder, melting the stubborn edges and thwarting tunneling. Another method is to use a candle topper, or "illuma-lid", which stabilizes the flame and distributes it uniformly across the surface of the candle, preventing tunneling.
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Freeze the candle before burning to harden the wax
There is an ongoing debate about whether freezing candles before burning them is a good idea. Some people believe that freezing candles will make them burn longer, while others argue that it is a misconception and that freezing can cause the candles to crack. However, if you want to try freezing your candle to harden the wax, here is a step-by-step guide:
First, place your candle in the freezer for at least six to eight hours before burning. You can even leave it in the freezer overnight. This will give the wax enough time to harden. It is important to note that there is no harm in freezing your candle for too long, so you don't have to worry about overdoing it.
Once you remove the candle from the freezer, you will notice that it has gained an icy exterior. At this point, you can trim the wick to the desired length. Trimming the wick ensures a clean and long burn. It is also important to trim the wick before each lighting.
After trimming the wick, you can light the candle and start timing the burn. You may not see a significant difference in the melting of the wax during the first five minutes, but over time, the hardened wax will melt at a slower pace.
To get the most out of your candle, ensure that your first burn is long enough for the entire diameter of the candle to melt into the burn pool. This will help prevent the formation of a deep well or "tunnel" in the centre, which can waste wax. A general rule of thumb is to burn the candle for at least one hour per inch of diameter.
By freezing your candle before burning it, you may be able to slow down the melting process and enjoy your candle for a longer period of time. However, results may vary, and it is important to be cautious of potential cracking.
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Frequently asked questions
To melt the edges of a candle, you need to ensure the first burn is long enough for the wax to melt all the way to the edges. The general rule is one hour per inch of diameter.
This is known as candle tunnelling and is usually caused by a candle that hasn't burned long enough or a wick that is too small.
You can use a hairdryer or heat gun to melt the wax around the edges. You can also use aluminium foil to reflect the heat and help the edges melt.
Always ensure the first burn is long enough to melt the wax to the edges. You can also buy candles with multiple wicks to distribute heat evenly.
The best way to melt the edges of a candle without causing tunnelling is to ensure the first burn is long enough. You can also use a candle warmer, which melts the wax from the bottom up, preventing tunnelling.
