If you’ve ever lit a soy candle and noticed it lasts longer than others, you’re not imagining it. Soy candles burn longer than many other wax types and it’s not just a marketing claim. The secret lies in the unique chemistry of soy wax, and how it behaves differently from paraffin candles and other alternatives.
Let’s explore why soy is the go-to choice for long-lasting candles.
Wax Density & Natural Composition
Soy wax is made from natural soybean oil, giving it a denser and more complex structure than paraffin wax. This density slows down the rate at which soy wax turns into vapor — and since only vaporized wax actually burns, the result is a slower, more efficient burn.
Think of it like comparing water to honey. Both are liquids, but honey flows more slowly. Soy wax behaves the same way compared to paraffin. That’s why a soy wax candle will typically outlast a similar-sized paraffin candle.
Cooler, Cleaner Burn
Soy wax melts at a lower temperature (around 120–130°F) compared to paraffin (130–160°F). This allows soy candles to burn cooler and cleaner, reducing soot and toxins. A cooler flame means the wax melts evenly into a smooth pool rather than burning off too quickly.
Not only does this give your candle a longer burn time, but it also creates a healthier environment with less smoke and cleaner air quality inside your home.
Wick Control & Combustion
Because soy wax is thicker and releases fuel slowly, Bia Candle Co carefully chooses natural wicks that complement this slower combustion. We must test several types and strengths of wicks to best suit our soy wax and each fragrance. This makes soy candles ideal for consistent fragrance release and hours of enjoyment without racing through the wax.
Even Melting, Less Waste
Most soy candles are container candles, which help regulate heat and prevent tunneling (that frustrating ring of leftover wax). Soy wax naturally adheres better to the jar, allowing nearly every ounce of wax to be used. This means you get more out of every candle you buy.
The Bottom Line
Soy candles last longer than many other waxes because they:
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Burn slower thanks to natural density
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Melt at a lower temperature for even burning
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Provide a cleaner, non-toxic burn
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Use more of the wax, with less waste
At Bia Candle Co., we hand-craft each soy candle to deliver maximum burn time, luxury fragrance, and a healthier alternative to pure paraffin. When you choose soy, you’re choosing a candle that’s built to last and designed to elevate your home.
