Independent buying guides for candle making

Candle Making Glossary: 15 Terms Explained

The words that show up in candle making specs, reviews and how-to guides, explained without jargon.

Beeswax
A natural wax with a higher melt point and honey scent, good for pillars and tapers.
Related: Best Beeswax for Candles
Cure time
Resting a candle before burning so fragrance binds with wax. Soy candles often benefit from one to two weeks.
Double boiler
A pot inside a pot of water that melts wax gently and safely.
Related: Best Double Boilers for Melting Candle Wax
Flash point
The temperature at which fragrance vapour can ignite. Add fragrance within supplier guidance.
Fragrance load
Fragrance oil as a percentage of wax weight. Check the wax and fragrance supplier's maximum.
Related: Best Candle Fragrance Oils for Strong, Clean Scent Throw
Frosting
White crystal patterns on soy candles, cosmetic and harmless.
Melt point
The temperature at which a wax becomes liquid.
Melt pool
The liquid wax around the wick. A full melt pool to the edge prevents tunnelling.
Pour temperature
The recommended temperature to pour wax for a smooth top and good adhesion.
Related: Best Candle Thermometers for Accurate Pours
Soy wax
A plant-based container wax with a creamy look and lower melt point.
Related: Best Soy Wax for Candles
Test burn
Burning test candles to check melt pool, flame height and safety before making a batch.
Related: Best Candle Testing Supplies for Burn Trials
Tunnelling
A candle burning straight down, leaving wasted wax on the sides.
Wet spots
Patches where wax pulls away from the glass, often from temperature changes.
Wick centering tool
A bar or clip that holds wicks upright and centred while wax sets.
Related: Best Wick Centering Tools
Wick size
Matched to container diameter and wax. Too small tunnels, too large smokes and overheats.
Related: Best Wick Sample Packs