Why Soy Candles Burn Longer and Cleaner

Soy candles are a popular option for those who are looking for environmentally friendly candles. They are made from hydrogenated soybean oil, and when sourced properly, are a sustainable choice that burns cleanly and last a long time.

Soy wax candles have a lower melting point than paraffin wax, allowing them to burn up to 50% longer than a paraffin wax candle. Soy wax is also natural, containing zero petrochemicals and burning clean. They don't release toxic pollutants into the air when lit up.

In fact, one 2002 study measured this and found soy wax burned considerably slower and cleaner than paraffin.

The Reasons Soy Candles Burn Longer

The secret to why soy candles burn longer is its melting point. Soy wax has a lower melting point than paraffin and many other types of wax.

A candle works by melting the wax close to the wick and drawing that melted wax up through the wick. A lower melt point means that the candle does not have to reach a high temperature to burn the wax, meaning the wax burns more slowly.

If the melting point is too low, however, other problems can occur, such as the wax melting from simply being shipped during the summer or sitting in the sun. Some candle waxes may burn for longer, such as coconut wax, but need to be mixed with another wax to make a workable candle.

There needs to be a balance between burn time and melt point. Soy candles strike that balance and can last as much as 50% longer than paraffin candles.

Soy also tends to burn more evenly, leaving little to no wax on the sides of a glass jar when it is being burned. That means less wax wasted overall, and more burn time as the candle can draw more of the wax to itself. This is doubly true when you use a beneficial wood wick.

Soy Candles Burn Cleaner

Soy candles will burn cleaner than traditional paraffin wax candles, which release carcinogens into the air. Paraffin is made using harmful fossil fuels, which are not only bad for the environment but are also harmful to our health.

Paraffin wax is also known to release soot, especially when paired with a cotton wick. Soot can form on the sides of your candle jar, appearing as a black, burnt type of look. At worst, soot damage can affect the walls of your home.

There are many benefits of soy wax. One is that soy wax is completely plant-based and releases nothing harmful into the air on its own. When paired with phthalate and paraben-free fragrance oils, you can rest assured that soy candles are a safe bet.

Other Factors Affecting Burn Time

Even the best soy candle can end up burning out before its time, or even putting off smoke if it is not properly maintained. The key to properly maintaining a wooden wick soy candle is to keep the wick trimmed short and to make sure the candle wax has melted evenly across the surface before extinguishing it.

If you extinguish your candle before the wax has melted evenly across the surface, it can lead to the candle tunneling. The candle will then be difficult or even impossible to light.

Basic candle care can help ensure that your soy candle burns long and cleanly so that you can enjoy your candle for as long as possible.

Soy Wax Compared to Other Waxes

There are a couple of other natural waxes that have long, clean burns. These include coconut wax, which can burn for quite a long time, and beeswax. Although these candle waxes both have similar burn times, they come with tradeoffs that make them less than ideal. These include:

Cost of Beeswax

Beeswax is made by honey bees, so there is a limited amount available. There are only so many bee colonies, and only a certain amount of their wax can be taken at a time without disrupting the colony. This translates to a much higher price than soy wax, which can be farmed in a field.

A Melting Point that Is Too Low

Coconut oil has a melting point even lower than soy, but that can lead to it melting at inopportune times. A candle that has melted before it can be burned is of no use at all. This is why coconut wax is often mixed with soy wax when it is being used—you get the best of both worlds. We use coconut wax in our candles.


Soy candles have become one of the best candle wax options for good reason. They burn cleaner, longer, and are relatively sustainable. When combined with coconut wax, they become a superpower. Try out our candles to see what they're all about.

Leave a comment

All comments are moderated before being published