FAQ

Candle FAQ

What are self-trimming wicks?

Candle makers also began to fashion wicks out of tightly braided (rather than simply twisted) strands of cotton. This technique makes wicks curl over as they burn, maintaining the height of the wick and therefore the flame. Because much of the excess wick is incinerated, these are referred to as "self-trimming" or "self-consuming" wicks. (Wikipedia.org/wiki/Candle)

Do scented candles produce more soot than unscented candles?

The oils found in certain fragrances may slightly increase the small amount of soot produced by a candle, but wick length and flame disturbance are the primary factors that impact sooting in a properly formulated candle. (https://candles.org/faqs)

Are scented candles triggers for asthma or allergies?

Although millions of Americans regularly use scented candles without any negative effects, it is always possible that a particular fragrance might trigger a negative reaction in a very small percentage of sensitive individuals. Individuals with known sensitivities to specific fragrances may want to avoid candles of those scents. In addition, consumers should remember to burn all candles, whether scented or unscented, in a well-ventilated area.  (https://candles.org/faqs)

 

Do scented candles produce more soot than unscented candles?

The oils found in certain fragrances may slightly increase the small amount of soot produced by a candle, but wick length and flame disturbance are the primary factors that impact sooting in a properly formulated candle. (https://candles.org/faqs)

Is candle soot harmful?

No. The minuscule amount of soot produced by a candle is the natural byproduct of incomplete combustion. Candle soot is composed primarily of elemental carbon particles, and is similar to the soot given off by kitchen toasters and cooking oils. These everyday household sources of soot are not considered a health concern, and are chemically different from the soot formed by the burning of diesel fuel, coal, gasoline, etc. 

The production of candle soot can also be minimized in the following ways:  Trim the wick to ¼ inch before every use to promote proper flame height, place the candle away from drafty areas to avoid flame flickering, and ensure that the wax pool is free of debris. (https://candles.org/faqs)

What sort of chemical reaction occurs when a candle burns?

When you light a candle, the heat of the flame melts the wax near the wick. This melted or liquid wax is then drawn up into the wick by capillary action. The flame’s heat vaporizes the liquid wax to produce water vapor and carbon dioxide (the same byproducts that humans produce when exhaling). (https://candles.org/faqs)

 

What causes a candle to smoke, and what can I do to correct it?

A well-made candle will create virtually no smoke when burning properly. Consumers often incorrectly believe their candles are sooting because of the wax type, fragrance, colorants or additives used in the candle’s formulation, but sooting is primarily due to flame and combustion disturbances. If the wick becomes too long, or an air current disturbs the flame’s teardrop shape, small amounts of unburned carbon particles (soot) will escape from the flame as a visible wisp of smoke. Any candle will soot if the flame is disturbed.

To avoid this, always trim the wick to ¼ inch before every use and be sure to place candles away from drafts, vents or air currents. If a candle continually flickers or smokes, it is not burning properly and should be extinguished. Allow the candle to cool, trim the wick, make sure the area is draft free, then re-light.  (https://candles.org/faqs)

 

How long should I burn a candle?

Maximum burn times vary from candle to candle, so it is important to follow the manufacturer’s instructions. Always extinguish a candle if the flame gets too close to the candle holder or container. For a margin of safety, discontinue burning a candle when 2 inches of wax remains (½ inch if a container candle or jar candle). (https://candles.org/faqs)

Why are candles so popular?

Candles are one of the most enjoyable, affordable, and readily accessible luxury items. They infuse the home with color and fragrance, and can help create a special warmth and ambiance to allow for a sense of calm and well-being. (https://candles.org/faqs)