A few simple habits make your candle burn longer, cleaner and more evenly. Here’s how to care for a scented candle and avoid common problems like tunnelling.
1. Get the first burn right
The first burn sets the “memory” of the candle. Let the wax melt all the way across the surface to the edges before you put it out — usually 1–2 hours. This prevents tunnelling, where the candle burns straight down the middle and wastes wax.
2. Trim the wick every time
Trim the wick to about 5 mm before each burn. A trimmed wick gives a steadier flame, less soot and a longer-lasting candle. For wooden wicks, gently snap off the charred top and keep them short.
3. Avoid drafts
Burn your candle away from fans, open windows and air-conditioning. Drafts make the flame flicker, burn unevenly and produce soot.
4. Don’t burn too long
Limit each burn to about 3–4 hours. Burning longer can overheat the wax and make the wick drift. Let the candle cool and re-trim before relighting.
5. Store it well
Keep candles out of direct sunlight and heat, and cover them when not in use to protect the fragrance and colour.
How to fix candle tunnelling
If a tunnel has formed, wrap foil around the top of the jar (leaving the centre open) and burn until the surface melts level again. Prevention is easier — always get that first full-melt burn.
Frequently asked questions
How do I make my candle last longer?
Trim the wick before every burn, allow a full melt pool each time, avoid drafts and don’t burn for more than about four hours at a stretch.
Why is my candle tunnelling?
Usually because the first burn was too short. Let the wax melt fully to the edges on the first light to set an even burn.
Should I trim a wooden wick?
Yes — keep it short (around 3–5 mm) and remove the charred top before relighting for a clean flame and gentle crackle.
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