Scented Candles: How to Avoid Tunneling and Enjoy the Perfect Flame
Complete Guide from First Use to Practical Solutions
Scented candles transform a simple room into a warm and welcoming space, lending relaxation and a touch of elegance. However, if not handled properly, problems such as tunneling (or "chimney effect"), the formation of a central hole in the wax, can arise. Let's look at why this occurs and how to prevent it .
1. The Role of Temperature and 24 Hour Waiting
A fundamental aspect, often overlooked, is to let the candle stabilize at room temperature for at least 24 hours (between 19 and 22 °C ) before lighting it.
- Wax stabilization: The wax needs to “settle”, avoiding thermal shocks that could alter the casting.
- Homogeneity of scents: The essential oils “bind” to the wax uniformly, allowing for a constant and intense diffusion of the scent.
If the candle is lit immediately, or in an environment that is too hot/cold, the wax may melt unevenly and encourage the formation of the tunnel.
2. What is Tunneling and Why Does It Happen?
Tunneling is the condition where the wax melts only in the center , leaving a thick, solid ring on the inside edge of the container. The most common causes are:
- Hasty First Lighting: If the candle is not left to burn long enough the first time to melt the entire surface, a permanent gap will be created.
- Too Cold or Drafty Environment: Drafts or low temperatures can cause the surface to cool before it melts evenly.
- Blowing Out the Candle Too Soon: If the top doesn’t reach the edges, a “step” of wax will remain that will prevent future even castings.
3. How to Prevent Tunneling (and Fix It)
To avoid and solve the tunnel problem, you can:
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Taking care of the first ignition
- Let the candle burn until the surface is melted from edge to edge.
- Allow approximately 1 hour of burning time for every 1 inch of candle diameter .
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Environment and Positioning
- Avoid drafts, air conditioning, or sources of excessive heat.
- Keep the candle on flat surfaces and away from drafts.
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Wick Management
- Trim the wick to 4-5 mm before each lighting.
- A wick that is too long can generate excessive heat in a limited area, encouraging tunneling.
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Repair the Tunnel
- If the tunnel has already formed, you can smooth the wax out by hand or wrap the container in aluminum foil (leaving only the top exposed). The reflected heat will gradually melt the outermost wax.
- In extreme cases, consider gently melting off the excess wax and smoothing the surface.
4. Other Tips for an Ideal Combustion Experience
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Please wait 24 hours after purchase or shipping
- Newly arrived candles must “acclimatise” for at least 24 hours at 19-22°C before use.
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Do not exceed 4 consecutive hours of combustion
- To avoid overheating the wax and fragrance.
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Smokeless Extinguishing
- Use a flame snuffer, a cap , or dip the wick in melted wax and then raise it. This will help prevent smoke and unpleasant odors.
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Proper Storage
- Keep the candle out of direct sunlight and away from dust and moisture. This preserves its color and aroma.
5. Why the First Ignition is Crucial
- Builds a "burn memory": The spark plug "learns" how to melt based on its initial burn. If it starts poorly (for example, burning only in the center), it will tend to repeat that pattern in future burns.
- Longer Lasting and Fragrance: A perfectly liquefied surface releases fragrance continuously and optimizes wax consumption, extending the life of the candle.
Conclusion
To avoid annoying tunneling and fully enjoy your scented candle , wait 24 hours after purchase, maintaining a room temperature of 19-22°C (66-72°F) before lighting. Make sure the first melt reaches the edges, trim the wick, and extinguish it properly. By following these tips, you'll enjoy a clean flame , an intense fragrance , and optimal melting from the very first moment. Happy burning!