Soy Candles vs. Paraffin Candles: What's Actually in Your Candle
If you've ever stood in a store wondering what "100% soy" actually means — or whether it matters — this is the no-fluff version.
Where each wax comes from
Soy wax is made from hydrogenated soybean oil. It's plant-based and renewable — soybeans get replanted every year.
Paraffin wax is a byproduct of petroleum refining. It comes from crude oil, so it's non-renewable, the same family as the fuel in your car.
That origin story is the whole reason the soy-vs-paraffin debate exists. Everything else is about how that difference shows up when the candle burns.
How they burn differently
Soy wax melts at a lower temperature than paraffin, so it liquefies more slowly. The practical result: a soy candle typically burns 30 to 50 percent longer than a paraffin candle of the same size. It also tends to melt more evenly, which means less of that "tunneling" where the wax burns straight down the middle and leaves a ring of unused wax on the sides.
Paraffin tends to burn hotter and faster. It throws fragrance hard — sometimes stronger than soy right out of the jar — but it can also produce more soot, especially if the wick isn't trimmed.
The health question, honestly
Here's what the research actually says: soy wax produces less soot and fewer volatile organic compounds than paraffin. But "cleaner" doesn't mean "zero emissions" — every burning candle releases some particulates, because that's what fire does.
The honest version is that wax is only part of the picture. Fragrance load, wick quality, and whether the room is ventilated all matter more than most labels suggest. A well-made paraffin candle in a ventilated room beats a cheap soy candle with a bad wick. It's just that soy starts from a better place.
Why soy costs more
Soy candles cost more because the wax costs more and the process is fussier — soy needs the right wick size, the right fragrance load, and a proper cure time to perform well. Paraffin is cheap, abundant, and easy to work with, which is why it dominates the mass-market candle aisle.
What to look for on the label
One thing worth knowing: a candle labeled "soy candle" isn't always 100% soy. Many are soy blends that contain paraffin. If the wax matters to you, look for "100% soy wax" — and check for phthalates in the fragrance, too, since those are a separate ingredient from the wax entirely.
The short version
| Soy wax | Paraffin wax | |
|---|---|---|
| Source | Soybeans, renewable | Petroleum, non-renewable |
| Burn time | Longer, 30–50% more | Shorter, burns hotter |
| Soot | Less | More |
| Scent throw | Gradual and steady | Strong, can fade |
| Cleanup | Soap and warm water | Needs solvents |
| Cost | More | Less |
Why we pour 100% soy
Every candle we make at Candle Studio 1422 is 100% soy wax — no paraffin, no phthalates — poured with wood or cotton wicks for that slow, steady burn. It costs more to make. We think it's worth it.
If you want a new one showing up at your door each month, that's exactly what the Candle Club is for.
Thoughtfully made soy candles.