Soy vs Paraffin Candles: What Candle Wax Is Made Of and How It Burns

Most candles are made from one of a few waxes, and the wax changes how a candle smells, how long it lasts, and how it looks as it burns. Here's what candle wax is made of and how the common types compare.

What is candle wax made of?

• Paraffin wax is a by-product of petroleum refining. It's the most common candle wax because it's inexpensive, holds color and fragrance well, and works in almost any shape.
• Soy wax is made from hydrogenated soybean oil. It's softer, so it's mostly used in jar and container candles.
• Beeswax is produced by honeybees. It's naturally golden, lightly honey-scented, and burns slowly.
• Blends — soy-paraffin, coconut-soy, and others — mix waxes to balance cost, scent, and performance.

Scent throw

Paraffin generally releases fragrance more strongly, both cold and while burning, which is why it's common in heavily scented candles. Soy gives a softer, more even scent that suits bedrooms and smaller rooms. Neither is better; it depends whether you want a candle to fill a room or simply soften it.

Burn time

Soy burns cooler and slower than paraffin, so a soy candle of the same size usually lasts longer. Beeswax burns slowest of all. Paraffin burns faster and hotter.

Soot

All candles can produce soot, and most visible soot comes from the wick, not the wax: a wick that's too long or a flame in a draft flickers and smokes. Soy and beeswax are often described as cleaner-burning, but trimming the wick matters more than the wax type.

Is paraffin wax toxic?

Paraffin candles are widely sold and used, and burning them normally is generally considered fine for most people. What a candle releases depends heavily on the fragrance, the wick, and how you burn it. If you're sensitive to scent or smoke, choose unscented candles, burn them in a ventilated room, and keep burn sessions to a few hours.

Best wax for candle making: soy vs beeswax

For home candle making, soy is the easier starting point — it's forgiving, holds fragrance well in jars, and cleans up with soap and water. Beeswax is harder, costs more, and suits pillars and tapers, but its natural scent can compete with added fragrance.

How to burn any candle well

1. Trim the wick to about 1/4 inch before every burn.
2. Let the first burn melt the whole surface to the edges — usually an hour per inch of diameter — to prevent tunneling.
3. Keep it out of drafts to avoid flickering and soot.
4. Stop at about 1/2 inch of wax left in a container candle.
5. Never leave a burning candle unattended.

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