Tyler Brooks
Candle tunneling is a common issue that occurs when a hole forms down the center, leaving unburnt wax at the edges. This problem can drastically reduce the total burn time of your candle and cause the candle to go out prematurely. There are several ways to fix a tunneling candle, including using a hairdryer to melt the wax evenly, trimming the wick, and wrapping aluminum foil around the top of the candle to increase heat and insulate the vessel. To prevent tunneling, it is important to ensure that the candle's first burn is long enough to melt the wax from edge to edge, creating a memory for even burning in the future.
How to help a tunneling candle
| Characteristics | Values |
|---|---|
| First burn duration | 1-4 hours |
| First burn purpose | To melt the wax to the edge of the container |
| Wick trimming | Trim to 1/4 inch before each lighting |
| Wick replacement | Replace if too short or stubby |
| Hair dryer | Use to melt the wax evenly |
| Foil collar | Wrap foil around the candle, leaving a small window for the wick |
| Oven | Put the candle in a low oven to melt the wax evenly |
| Candle warmer | Use an electric candle warmer to melt the wax from the bottom up |
| Wick dipper | Use to extinguish the flame without producing smoke or soot |
| Spoon | Use to scoop out the unmelted wax |
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What You'll Learn
Ensure the candle is the correct size for the wick
Ensuring that your candle is the correct size for its wick is crucial to preventing tunneling. Tunneling occurs when only a small circle of wax around the wick melts while the candle is burning, instead of the wax across the entire surface. This results in a "`tunnel`" in the centre of the candle, wasting wax and shortening the candle's lifespan.
To prevent tunneling, it's important to ensure that your candle's first burn is long enough for the melted wax to reach the edge of the candle container. This will prevent the formation of a barrier that prevents even melting in subsequent burns. The general guideline is to burn the candle for one hour per inch of the candle's diameter during its first burn session.
If you're making your own candles, it's essential to select the appropriate wick size for the specific candle size and wax type you're using. Different types of wax, such as paraffin or soy, may require different wick sizes to achieve optimal burning. Additionally, factors such as fragrance load, dye type, and container diameter will also influence the appropriate wick size. It is recommended to use a wick guide or sampler kits to help determine the correct wick size for your candle.
For store-bought candles, if tunneling occurs due to an incorrect wick size, you can try the foil trick or use a hair dryer on medium heat to melt the top wax layer and even out the surface. However, always exercise caution when handling hot wax and open flames, and never leave a burning candle unattended.
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Trim the wick and remove debris
Trimming the wick of a candle is an important step to ensure a clean, even burn, increase the lifespan of your candle, and reduce the risk of fire hazards. Firstly, ensure that the candle is completely cool and not lit. Use a wick trimmer, scissors, nail clippers, or tweezers to trim the wick to about a quarter of an inch. This length is ideal for an even and clean burn. While cutting, allow the blades to catch the wick debris to prevent it from falling into the wax. Wick trimmers have special tray-shaped blades designed for this purpose. Discard the excess soot, debris, and trimmed wick into a waste bin, and avoid leaving it in the candle wax.
Trimming candle wicks is essential for extending candle life, preventing smoke and soot, and ensuring an even burn without tunneling. As a candle burns, cotton and wood wicks start to split, and the burnt pieces may break off into the wax, forming debris near the base of the wick. If left alone, the debris can be picked up by the flame and cause your candle to burn hotter and faster than designed. Proper wick trimming prevents this type of debris from forming, making your candles last up to 25% longer.
If you don't trim your candle wicks regularly, your candle is more likely to create larger flames that produce excess amounts of smoke and soot. Trimming the wick to a quarter of an inch helps keep the wick from getting too hot and creating soot. A wick that is too long can also cause the candle to burn unevenly, resulting in wax buildup on one side of the candle. This leads to wasted wax. By trimming the wick, you can prevent the candle from burning too quickly, which can shorten its lifespan.
It is recommended to get into the habit of trimming the wick before each burn to help maintain good flame hygiene. When you trim the wick before the candle is lit, the wax will still be in its solid form, which makes the trimming process much easier.
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Use a hairdryer to melt the wax evenly
If your candle is tunneling, you can use a hairdryer to melt the wax evenly and fix the issue. Firstly, extinguish the candle's flame. Then, use a hairdryer on a low setting to melt the wax to the edge of the container. Make sure to hold the hairdryer far enough away from the wax to avoid spattering. The goal is to remove the candle's "memory" of its first burn, which caused the tunneling. By melting the wax evenly, you can ensure that the next time you light the candle, the wax will melt uniformly and the tunneling will not continue.
When using the hairdryer, be careful not to overheat the wax, as this can cause damage. It may take some time for the wax to melt evenly, especially if your hairdryer does not get too hot. You can use a wick dipper or small metal spatula to gently scrape at the unmelted wax on the sides to help it melt faster. Continue heating until the entire top surface of the wax has completely melted and smoothed over.
If you don't have a hairdryer, you can also use a low oven to melt the wax evenly. However, be sure to extinguish the flame first and only use a low heat setting to avoid overheating.
To prevent tunneling in the future, ensure that your candle's first burn is long enough to melt the wax uniformly across the entire surface. This usually takes between one and four hours, depending on the candle's size. Additionally, trimming the wick to 1/4 inch before each burn can help promote an even melt.
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Scrape away excess wax with a knife or spoon
If your candle is tunneling, you can try to fix it by scraping away the excess wax with a knife or spoon. This method works especially well if the wick is "drowning" in wax. First, extinguish the flame if it is lit. Then, with a butter knife or spoon, gently scrape away the unburned wax around the edges, making the candle as flat as possible. Be gentle to avoid damaging the candle wick or container. If your wick is too short, dig around the wax to expose it, ensuring it is the right length for a proper burn. If it is beyond saving, consider replacing it with a new wick of the appropriate size.
This method is a quick fix for tunneling, but it does have some drawbacks. By removing wax, you will lose some burn time on your candle. However, tunneling also reduces burn time, so this method can help to salvage your candle.
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Wrap the candle in aluminium foil
If your candle is tunneling, one way to fix it is to wrap the top of the candle in aluminium foil. This is a popular trick among candle lovers, as the foil increases the heat while keeping the vessel insulated, causing the excess wax to melt.
To do this, cut out a piece of aluminium foil and wrap it around the top of the candle, leaving a small opening for the wick and flame. This will help the flame work harder, melting the excess wax around the wick.
It is important to note that this method may not solve the tunneling issue immediately, and it may take some time for the excess wax to melt. Additionally, always remember to never leave a burning candle unattended and to be mindful of pets, children, drafts, and anything nearby that could catch fire.
While wrapping the candle in aluminium foil can be an effective way to fix a tunneling candle, there are also other methods to consider, such as using a hair dryer on a low setting to melt the wax evenly or gently removing the higher wax along the edges with a spoon or butter knife.
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Frequently asked questions
Candle tunneling occurs when a hole forms down the center of the candle, leaving unburned wax at the edges.
Candle tunneling can occur when the wick is too small for the candle, or if the candle isn't burned long enough during its first few burns.
To prevent candle tunneling, ensure the wick is the correct size and trim it before each burn. Burn the candle long enough during its first use, typically between one to four hours, to allow the wax to melt evenly.
To fix a tunneling candle, you can use a hair dryer to melt the wax evenly. Alternatively, you can wrap aluminum foil around the top of the candle, leaving a small opening for the wick and flame.
Ensure you are using a high-quality candle with proper ingredients. Avoid burning the candle for too long, as this can cause overheating and potential cracking of the candle container. Extinguish the flame safely using a wick dipper to prevent smoke and soot.
