Are soy candles better than paraffin?

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SA CANDLE GUIDE · ASK & ANSWER ·  

Are soy candles better than paraffin?

Short answer

Mostly yes, with caveats. Soy candles burn cooler and slower than paraffin candles, usually with less visible soot, and soy comes from a renewable crop while paraffin is refined from petroleum. The health gap between the two waxes is small in everyday use. For South African homes, the wick and fragrance quality decide more than the wax does.

Where soy wins

Soy holds a modest edge on three things you can measure. It burns at a lower temperature, so the wax melts slower and the candle lasts longer. It tends to leave less of the grey soot that paraffin can deposit on glass and walls. And because soy grows as a crop, it carries a lighter footprint than petroleum wax.

The health story is calmer than most labels suggest. In 2007 the Bayreuth Institute of Environmental Research tested paraffin, soy, stearin and beeswax across more than 300 chemicals, and found the combustion byproducts of every wax type were close to identical. A 2014 review in Regulatory Toxicology and Pharmacology found scented candle emissions fall well below international exposure limits under normal use. The claim that paraffin releases benzene and toluene traces back to a 2009 South Carolina State University study that was never published or peer-reviewed, and its method has been picked apart since. The Cleveland Clinic holds that there isn't strong evidence to call candles dangerous to your health.

Factor Soy Paraffin
Burn temperature Cooler, slower Hotter, faster
Visible soot Less More
Source Renewable crop Refined petroleum
Health risk (normal use) Low Low

Soot on the glass usually comes down to the wick. A metal-core or untrimmed wick burns dirty; a cotton or wood wick trimmed to about 5 mm burns clean on almost any quality wax. Lead-core wicks were the old hazard, and most markets banned them years ago.

How Mylk approaches it

Mylk pours a coconut-soy wax with metal-free cotton wicks and IFRA-compliant perfume-grade fragrance oils, made without paraffin, parabens or phthalates. Every batch is power-burned for about 45 hours before it ships, which confirms an even wax pool and clean glass on each run. That coconut-soy blend gets picked for scent throw and a clean, even burn, and the soy wax candles list the wax, wick and fragrance standard on each product page so you can check before buying.

For the full picture on what makes a candle clean and which local makers earn trust, read our guide to the best non-toxic candles.

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