Why does candle wax sink in the middle?

Wax sinks when it sets because as the wax cools, it slowly contracts and can leave what I refer to as 'sink holes' in the middle of your candles, but can also present as sunken dips around the wick.

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Moreover, why does my candle look curdled?

Fragrance oils can also cause holes and lumpy tops. Fragrances like vanillas and some florals such as lavenders and geranium are notorious for 'curdling' the top of soy candles. This can be overcome by ensuring that your oils are mixed well with the wax and at the correct "add fragrance" temperature. Why should you not burn a candle for more than 4 hours? If you burn your candle for more than 4 hours at a time, carbon will collect on the wick, and your wick will begin to "mushroom." This can cause the wick to become unstable, the flame to get too large, your candle to smoke, and soot to be released into the air and around your candle container.

How long will it take the candle be completely melted?

A candle in a container takes about two hours to completely cool down, but it's worth the wait both for safety and function. It's much safer to trim the wick when the wax pool has hardened. A hot pool of melted wax can burn your fingers if you dive in for a wick before it's cooled and solidified. What happens if I inhale candle smoke? Candles and incense can affect air quality. As candles or incense burn, tiny particles smolder and flake off into the air. When this soot is inhaled, it can get into the airways and lungs, possibly causing irritation. This can worsen asthma symptoms.

Are candles smokeless?

Customers often ask us why we don't label our candles as 'smokeless', since they burn without smoking. Likewise, blowing out a candle will cause it to smoke. This is regardless of the type of candle; it is a result of incomplete combustion. What is the cleanest burning candle? Beeswax is the oldest known material used for candles, and remains one of the cleanest options. Beeswax is natural, free of toxins, and makes fall candles that provide slow burn. It's considered the cleanest burning candle wax, as it acts as a natural air purifier.