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Blog - candle making

​Where did all the smell go?

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Scented CandleSo you consider yourself a candle addict. You have tried a few brands and you may have even explored candles made from different types of wax. But have you ever wondered why there can be such a vast difference in scent throw? Or, have you ever opened a jar instore and been delighted with the fragrance, only to find the aroma has mysteriously vanished somewhere on the journey home or after a single burn?

There are a few good reasons why soy candles have really taken off over the last decade & I’ve outlined some of these  reasons here but what I want to share with you today is why soy candles are better at fragrancing your home and why they offer the highest level of scent-throw? It happens because of a production technique known as “cold-pouring.” This is a technique not available to the production of paraffin wax candle and is what sets soy candles apart from its competition in terms of a superior scent throw and cleaner burn.

pouring candle

Some quick background first…..

Candle making is both a science & an art, it’s not as simple as melting some wax, adding in the fragrance then plonking a wick down the middle. 

The obvious first step in candle making is melting down the wax so the fragrance can be added. As the wax is heated, it will eventually reach its melting point and turns from a solid to a liquid. Before adding the fragrance it is vital that the wax is not too hot or too cold. 

What’s scientific about that I hear you ask? Well, different waxes have different melting points. Where it gets tricky is understanding at what temperature ABOVE the waxes melting point is the ideal temperature for the next stage – adding the fragrance. Getting this "mix" temperature right allows for a greater amount of fragrance to bond with the wax, ensuring that its only released once lit. It also means an even distribution of fragrance across all layers of the candle during its burn life. Only something that can be fully understood with lots of testing and experience. 

Now onto the interesting part…..

Just like different wax types have different properties, each individual fragrance varies from the next. Every  scent we offer has a different flashpoint. The flashpoint is technically the temperature at which the fragrance turns to a gas and can spontaneously ignite, but for candle makers the flashpoint is used as an indicator to determine the ideal "mix" temperature. 

Mix at higher temperatures and fragrance will actually evaporate and not bond with the wax

Unfortunately for Paraffin wax candles they often use a "hot pour” technique The chemical properties of paraffin wax give it a higher melting point of somewhere in the range of 55º-70º 

Once the Paraffin wax is melted down it is either;

  1. A lot closer to the fragrances flashpoint or worse;
  1. Above the fragrances flashpoint.

So, when the fragrance is then mixed to a hotter parrafin wax, more of that delicious scent evaporates and is lost to the atmosphere at candle maker’s factory. Interestingly, some Parrafin candle makers using this hot poured technique will immediately seal the candle, trapping some of the evaporated fragrance gas within the jar


Ever had the situation of opening a jar in a candle store and thinking “WOW I must have this”, only to take it home to find that most of the scent has mysteriously vanished on the car trip home or burnt off after a single use? 

This is your reason why – it’s been hot poured, then sealed immediately at the factory. By the time its home you have lost a decent amount of the intended fragrance


Good news is - it’s different when working with soy wax. The soy wax used by Bliss Candles has an amazingly low melting point of 43.9º. This allows us to “cold pour”. Because of Soy’s low melting temperature we do not even get close to reaching the fragrances flashpoint during pouring and our "mix" temperature can be a lot lower. Because of this, more fragrance is bonded within the wax, only to be released when that delicious pool of molten soy wax is warmed by the gentle flicker of the flame.

So there you have it, the science behind the superior scent throw of your soy candle and why it’s our fav! 

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