There are two strategies to achieving smooth candle tops: repair and prevention.
While repairing rough candle tops adds a step to the candle making process, the good news is this fix is quick and effective.
Preventing rough candle tops can be trickier and your mileage may vary. Be sure to take detailed notes of the variables and your observations to figure out what works best for your process.
1. Repair rough candle tops with a heat gun
- A few seconds of high heat from a heat gun will quickly melt the soy wax surface, level any bumps and make for a smooth candle top.
- Don't have a heat gun? A hair dryer can work in a pinch. However, be aware the hair dryer's wider air stream may blow hot wax onto you or your work area.
2. Adjust the pour temperature
- First, make note of the wax manufacturer’s recommended pour temperature.
- Should rough tops occur at that temperature, try pouring 5-10°F warmer.
- When lab notes are available for your wax, be sure to read them for more guidance.
3. Control the room temperature
- Aim to make your candles in a temperature-controlled space between 68°F and 72°F.
- A consistent ambient room temperature allows the candles to cool evenly.
4. Elevate the candles
- Pour your candles on racks that are raised up from the work surface to encourage steady, even cooling.
- No racks? Setting your candle vessels on corrugated cardboard can also work. The pockets in the cardboard allow air circulation under the candles.
5. Preheat your vessels
- Warm containers to 90°-100°F before pouring.
- This lessens the temperature difference between the wax and its surroundings and allows candles to cool more evenly.
6. Minimize the presence of air
- Stir the wax gently when adding fragrance to minimize air bubbles.
- By the same token, pour the wax slowly into the vessels to reduce possible air bubbles.