Few things are more frustrating than lighting a candle only to see it burn straight down the middle, leaving wax stuck along the sides of the jar. This is called candle tunneling, and it’s one of the most common candle problems.
The good news is that tunneling is usually easy to fix — and even easier to prevent.
What Is Candle Tunneling?
Candle tunneling happens when the wax melts only around the wick instead of across the entire surface. Over time, this creates a deep hole in the center of the candle while unused wax builds up along the edges.
When this happens, the candle:
• Burns unevenly
• Produces less fragrance
• Wastes a lot of wax
• Has a shorter lifespan
Why Candles Tunnel
The most common cause of tunneling is not letting the candle burn long enough during the first burn.
Candles have something called a memory burn. The first time you light a candle, it sets the pattern for how the wax will melt in the future.
If you blow the candle out before the melt pool reaches the edges of the jar, the candle may continue burning in that smaller circle every time it’s lit.
Other causes can include:
• Drafts from fans or windows
• A wick that is too small
• Burning the candle for very short periods of time
How to Fix a Tunneling Candle
If your candle has already started tunneling, don’t worry — there are ways to fix it.
The Foil Method
One of the easiest ways to fix tunneling is the foil trick.
- Light the candle
- Wrap aluminum foil around the top of the jar
- Leave a small opening above the flame
- Let the candle burn for about an hour
The foil traps heat and helps melt the wax along the sides so the surface levels out again.
Let the Candle Burn Longer
If tunneling is minor, simply letting the candle burn longer during the next use may allow the melt pool to reach the edges naturally.
Most candles should burn 2–4 hours per session.
How to Prevent Candle Tunneling
The easiest way to avoid tunneling is to follow one simple rule:
Let the first burn reach the edges of the jar.
This usually takes about 2–3 hours, depending on the candle size.
Also remember to:
• Trim the wick to about 1/4 inch before lighting
• Keep candles away from drafts
• Allow enough time for a full melt pool each burn
A Quality Candle Helps Too
Well-made candles are designed with carefully tested wick sizes and wax blends to help prevent tunneling and create an even burn.
At KilaNova Kreations, every candle is hand-poured and tested to provide a smooth, even melt and a strong fragrance throw.
Taking a few simple care steps will help your candle burn beautifully from the first light to the last.
