Ben Carter
A sunken candle wick is not just a minor inconvenience but can be caused by various factors that can be controlled or mitigated. Candle tunneling, or sinkholes, can occur when a candle isn't burned carefully, resulting in a hole forming down the center, leaving unused wax at the edges. This can be prevented by ensuring that the entire top layer of wax melts during the first burn, which can take up to 2 hours depending on the candle size. If your candle has already started tunneling, you can fix it by melting the outer wax surrounding the tunnel to create an even surface. This can be done with a hairdryer or heat gun on a low setting, or by using aluminum foil to reflect heat back down to the candle's edge.
How to fix a candle that has sunk
| Characteristics | Values |
|---|---|
| Reason for sinking | Overpouring wax, wick too short, uneven burning, soft wax |
| Prevention | Avoid overpouring wax, ensure the wick is not too short, burn candles away from drafts, ensure the candle surface is level |
| Fix | Use a paper towel or cotton pad to soak up excess wax, use a heat gun or hair dryer on low heat to melt surrounding wax, straighten wick with tweezers, trim wick to 1/4 inch |
| Sinkhole prevention | Poke relief holes around the wick to allow trapped air to escape, do a second pour of wax to fill sinkholes |
| Sinkhole fix | Melt the outer wax surrounding the sinkhole, use a heat gun or hair dryer to melt the wax around the edges of the container |
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What You'll Learn
- Avoid overpouring wax around the wick during the candle-making process
- Ensure the wick is the right length to stay above the surface of the wax
- Burn the candle for long enough so the entire top layer of wax melts
- Melt the outer wax surrounding the tunnel to make the surface even again
- Poke relief holes around the wick to allow trapped air to escape
Avoid overpouring wax around the wick during the candle-making process
To avoid a candle from sinking, it is important to not overpour wax around the wick during the candle-making process. This is because if there is too much wax around the wick, the wick can become overwhelmed and sink. Therefore, it is recommended to follow the fill line of the mould and not exceed it.
It is also important to ensure that the wick is not too short. If the wick is too short, it may not have enough length to stay above the surface of the wax as the wax melts. Thus, the wick may sink into the wax. To prevent this, the wick should be trimmed to the appropriate length, which is usually about a quarter of an inch.
Another factor to consider is the burning time of the candle. When lighting a candle for the first time, it is important to allow enough time for the entire top layer of wax to melt. This is crucial to prevent the formation of a barrier that can lead to candle tunnelling and increase the risk of wick sinking during subsequent burns. A general guideline is to burn the candle for about one hour per inch of its diameter.
Additionally, the environment in which the candle is burned can impact its performance. Burning candles in drafty areas can cause uneven burning, leading to one side of the wax melting more than the other. This can cause the wick to tilt and eventually become buried in the wax. Therefore, it is recommended to burn candles in a draft-free environment on a level surface to ensure uniform melting of the wax.
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Ensure the wick is the right length to stay above the surface of the wax
One of the reasons a candle wick sinks is that it was trimmed too short before being lit. Therefore, it is important to ensure that the wick is the right length to stay above the surface of the wax. The recommended length for a candle wick is 1/4 inch, which enables a cleaner and more consistent burn. If the wick is slightly submerged, you can use a heat gun or a hair dryer on a low setting to gently melt the surrounding wax. Once the wick is exposed, extinguish the flame and let the wax cool. Then, trim the wick to the appropriate length.
It is also important to note that the first burn of a new candle plays a crucial role in preventing wick sinking in subsequent burns. During the first lighting, the candle should be burned long enough for the entire top layer of wax to melt, creating an even melt pool. This usually takes around one to two hours, depending on the candle's size, but could take up to four hours for larger candles. By allowing the candle to burn until the wax melts across the entire diameter, you can prevent the formation of a tunnel in the wax, which can shorten the candle's life.
Additionally, the environment in which a candle is burned can impact its performance and affect the likelihood of wick sinking. It is recommended to avoid burning candles in drafty areas, as uneven burning can cause one side of the wax to melt more than the other, leading to the wick tilting and eventually becoming buried in the wax. Therefore, ensuring that the candle is burned on a level surface can help the wax to melt uniformly and reduce the risk of wick sinking.
To further prevent wick sinking, it is suggested to poke relief holes around the wick while the candle is setting. This technique allows any trapped air to escape and enables liquid wax to fill any sinkholes that may be forming. However, it is important to note that this method will create a visible crater in the centre of the candle, requiring a second pour of wax to achieve a smooth surface.
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Burn the candle for long enough so the entire top layer of wax melts
Burning your candle for long enough so that the entire top layer of wax melts is a crucial step in candle care. This process is important to prevent candle tunnelling and reduce the risk of the wick sinking during subsequent burns.
Candle tunnelling is a common issue that occurs when a candle is not burned properly. It results in a hole forming down the centre of the candle, leaving unused wax at the edges. This can be caused by a variety of factors, such as an incorrectly sized wick, a short initial lighting duration, or uneven burning due to drafts. When a candle tunnels, the wax underneath the flame melts quickly, while the surrounding wax remains hard. As the tunnel deepens over time, it can become impossible to light the wick, and the candle's burn time is reduced as only a small portion of the wax is consumed.
To prevent tunnelling and wick sinking, it is recommended to burn your candle for about one hour for every inch of its diameter. This ensures that the wax melts uniformly across the entire surface, creating an even melt pool. This is especially important when lighting a new candle for the first time. Depending on the size of the candle, this process can take anywhere from one to four hours.
It is also important to be mindful of the environment in which you are burning your candle. Avoid drafty areas as this can cause uneven burning and wick problems. Always ensure the surface is level to promote uniform melting.
By following these guidelines, you can significantly reduce the likelihood of encountering sunken wick issues and enjoy a safer and more enjoyable candle-burning experience.
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Melt the outer wax surrounding the tunnel to make the surface even again
If your candle has started to tunnel, you can fix it by melting the outer wax surrounding the tunnel to make the surface even again. This method is ideal for shallow sinkholes of about 1/2 inch or less.
Firstly, extinguish the candle flame if it is lit. Then, take an external heat source such as a heat gun or a hair dryer set to low heat. Place some old newspaper beneath the candle to protect the surface from any dripping wax. Hold the heat source at a distance from the candle and slowly move it closer. Be careful not to hold it too close or to blow hot air directly over the candle, as this will cause melted wax to spatter. The goal is to melt the wax surrounding the tunnel and create an even surface.
This process "resets the memory" of the wax, allowing it to widen the melt pool and reach the edges of the container. It is important to wear eye protection and clothes that can be washed, as hot wax can be dangerous.
Another method to fix a tunneling candle is to use aluminium foil. Wrap the foil around the outside of the candle, leaving the centre open for the flame. After burning for 1-2 hours, the candle surface should even out, with the melted wax reaching the edge of the container.
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Poke relief holes around the wick to allow trapped air to escape
When making a candle, it is important to be aware of the possibility of air bubbles forming in the wax. These bubbles can become trapped beneath the surface, leaving an air pocket that causes a sinkhole to form. This occurs when the wax around the edges and the wick cool and harden too quickly, trapping air bubbles beneath the surface. To prevent this, you can poke relief holes around the wick as the candle is setting. This will allow any air trapped below the surface to escape, and also enable liquid wax to fill any sinkholes that may be forming.
By poking relief holes, you are creating a pathway for the trapped air to escape. The number and size of the holes will depend on the size of your candle and the number of air bubbles trapped. It is important to be gentle and use an appropriate tool to create the holes, such as a toothpick or skewer, to avoid damaging the structure of the candle.
Additionally, this technique can be used in conjunction with other methods to further prevent sinkholes. For example, ensuring that your candle cools slowly and evenly can help reduce the likelihood of sinkholes forming. Placing your candle in a refrigerator or in front of a fan can increase the chances of sinkholes, as this rapid cooling does not allow enough time for the air bubbles to escape.
Furthermore, if you find that your candle has already set and a sinkhole has formed, you may need to re-melt the wax and start again. This can be done by gently heating the wax until it reaches a liquid state, being careful not to overheat and cause smoke or discolouration. Once the wax is liquid, you can then pour it into your mould and allow it to cool slowly, this time poking relief holes to prevent sinkholes.
In summary, poking relief holes around the wick is an effective way to prevent and remedy sinkholes in candles. This technique allows trapped air to escape and enables liquid wax to fill any sinkholes, resulting in a smoother and more aesthetically pleasing candle.
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Frequently asked questions
First, identify the cause of the sinking. Common causes include overpouring wax, a wick that is too short, uneven burning, or soft wax. Then, try the following solutions:
- If there is a pool of melted wax around the wick, use a paper towel or cotton pad to gently absorb it.
- For wicks that are slightly submerged, use a heat gun or hair dryer on a low setting to gently melt the surrounding wax.
- If the wick is bent or leaning, straighten it with tweezers, then trim it to the appropriate length (about 1/4 inch).
- Prevent tunneling by ensuring the candle burns long enough for the wax to melt across the entire diameter.
Candle tunneling occurs when a small circle of wax melts around the wick while the candle is burning, instead of the entire surface of the candle. This creates a barrier that remains on subsequent lightings, resulting in wasted wax and reduced burn time.
To prevent candle tunneling, it is important to ensure that the candle burns long enough for the wax to melt to the edge of the container, especially when lighting a new candle for the first time. This usually takes 1-2 hours, depending on the size of the candle.
