Lance Carson
Candles are a great way to create a cozy atmosphere and fill your space with your favorite fragrances. But what if the scent of your candle isn't strong enough? There are several ways to enhance the fragrance of your candle, whether it's store-bought or homemade. The key factors that influence the strength of a candle's scent include the type of wax, the amount and quality of fragrance oil, the size of the candle, and the temperature at which the oil is added. By understanding these factors, you can make informed choices when purchasing candles or creating your own to ensure a stronger and more enjoyable fragrance experience.
Characteristics and Values of a Strongly Fragranced Candle
| Characteristics | Values |
|---|---|
| Wax type | Coconut, soy, or paraffin wax |
| Wax temperature | Not too high when adding fragrance oil |
| Oil type | Fragrance oil |
| Oil amount | Higher concentration |
| Oil temperature | Added at the right temperature |
| Wick type | Thick and centred |
| Wick length | Trimmed to around 1/4" |
| Candle size | Matches the size of the room |
| Container | Solid wax top |
| Curing time | At least 2 days |
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What You'll Learn
Choose the right wax type
The type of wax you use can significantly impact the strength of your candle's fragrance. Paraffin wax is widely regarded as the best wax for achieving a strong fragrance. Its molecular structure is less dense than soy wax, allowing candles to give off a much stronger scent, often with less fragrance required. Paraffin wax is also inexpensive, making it a popular choice for candle-making. However, it is a petroleum byproduct, which has raised questions about its environmental impact.
If you're looking for an eco-friendly alternative, consider coconut wax, which is biodegradable and holds fragrance well, providing an excellent scent throw. Its creamy texture makes it perfect for blending with other waxes, like soy wax. Coconut wax has a mild natural coconut fragrance that helps lift and carry additional scents, resulting in a stronger aromatherapy experience. However, it requires a higher melting temperature than soy wax, which some candle makers may be hesitant to use.
Soy wax, while known to be more "picky" about the fragrance oils that work well with it, is a popular choice due to its budget-friendliness and natural, renewable source. It has a soot-free burn and burns slowly, making it a good option for container candles. However, it may not provide as strong of a scent throw as paraffin or coconut wax.
Another eco-friendly option is rapeseed wax, which has an excellent burn time and is great at retaining fragrances. It burns at a more consistent temperature than other waxes and holds dye well if you want to add colour to your candle. Beeswax is another natural, eco-friendly option with a subtle honey scent and a signature golden colour. It has the longest burn time and produces a warm-toned, smoke-free flame, making it a good choice for pillar and taper candles.
Ultimately, the right wax type for your candle will depend on your specific needs and concerns. If you're looking for a strong fragrance, paraffin or coconut wax may be your best option. If you prefer a more eco-friendly or budget-friendly choice, soy, beeswax, or rapeseed wax might be better suited for your needs. Experimenting with different wax types and fragrance oils will help you find the perfect formula for your scented candles.
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Add more fragrance oil
The most straightforward way to make your candles smell stronger is to add more fragrance oil. The amount of oil you add will depend on the size of your candle and the temperature of the wax when melted. As a general rule, the average measure of wax to oil should be 1 ounce of fragrance oil to 1 pound of wax.
When adding fragrance oil to your candle, ensure the wax is not too hot, as the oil will not mix well and will burn off as the candle cools. The ideal wax temperature will depend on the viscosity of the wax—a warmer wax has more friction than a hot wax, and the more viscous the wax, the harder it is for fragrance molecules to diffuse through it.
If you are making your own candles, you can simply add more fragrance oil to your wax mixture and stir well before pouring the candles. Allow the candles to sit for at least two days to cure, then check the scent throw.
For store-bought candles, you can add a few drops of fragrance oil to the melted wax around the wick. However, be cautious not to add too much oil, as this can cause "flame-over," where the entire top of the candle catches fire. Additionally, be sure to choose a candle made from coconut or soy wax, as these types of wax tend to absorb oils better and have a stronger scent throw.
It is also important to consider the size of your candle in relation to the room in which it will be burned. A small candle may not be able to effectively scent a large room, no matter how much fragrance oil is added.
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Use essential oils
Essential oils are a great way to make your candles smell stronger, and they can be used to create custom, all-natural scents while avoiding synthetic fragrances and harmful chemicals. They are highly concentrated liquids derived from organic plant matter, and as such, they contain the strongest scents of that particular plant.
When making candles with essential oils, it's important to understand how they interact with candle wax to ensure the best scent throw and longevity. Essential oils have lower flash points than synthetic fragrance oils, meaning they require less heat to release their aroma effectively. Therefore, a smaller wick is generally the best choice for candles with essential oils, as it helps maintain a steady burn and prevents the oils from burning off too quickly.
The type of wax you use can also amplify how well a candle throws scent. For example, coconut wax has a mild natural coconut fragrance that helps lift and carry additional scents, and it can hold more oil than paraffin wax. Soy wax and beeswax also have light natural scents that can complement other fragrances.
When adding essential oils to your candle wax, make sure the wax temperature is not too hot, as this can burn off the scent. Allow the wax to cool to around 125°F before adding the essential oils, then stir slowly but thoroughly for one to two minutes to ensure the oils and wax are well combined.
Finally, allowing your candles to cure for an extended period before burning will help strengthen their scent. During the curing process, oil molecules bind to the wax molecules, and the fragrance becomes embedded in the candle. While candles can be burned after curing for 24 hours, they will have a stronger initial scent if you wait for three to seven days or even longer.
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Pick the right candle size
Picking the right candle size is crucial to filling your space with fragrance. A small candle won't be able to spread a strong scent across a large room. Larger candles, especially those with multiple wicks, will undoubtedly fill a room with fragrance. The bigger the candle, the larger the wax pool, and the better the scent throw.
The size of the room matters. The smaller the room, the easier it is to fill with fragrance. If the candle is too small for the room, the scent won't be able to fill the space properly. So, when choosing a candle, consider the size of the space you want to scent. The larger the space, the bigger the candle you'll need.
The distance from your nose to the candle also matters. The further away the candle is, the longer it takes for the fragrance molecules to reach you. This is why you can smell the "cold throw" (the fragrance of an unlit candle) when you put your nose close to it in a store.
The diameter of the candle container also affects the strength of the fragrance. A wider diameter will result in a stronger fragrance. A small candle in a tin or jar may be sufficient for a bedroom or bathroom, but a larger space may require a candle with a wider diameter.
Additionally, consider the type of wax. Some waxes trap fragrance better than others due to their molecular structure. Paraffin wax, for example, is known for its strong scent throw, while natural waxes like soy hold onto scent better but are harder to work with. Coconut wax is another great option, as it has a mild natural fragrance that helps lift and carry additional scents, and it can hold more oil than paraffin. Soy wax and beeswax also have light natural scents that can complement other fragrances.
Finally, don't forget about the wick. The type of wick you choose will impact the scent throw. Under-wicking can result in bad scent throw. A larger wick will produce a hotter and larger flame, melting more wax and releasing more fragrance. Alternatively, you can use multiple wicks to increase the size of the wax pool.
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Learn candle fragrance terms
If you're looking to improve the fragrance of your candles, it's important to understand some basic candle fragrance terms.
Cold throw is the fragrance you smell when a candle is unlit and cold. When a candle is cold, you usually need to smell it up close to detect its scent.
Hot throw, on the other hand, refers to the strength of the fragrance emitted when the candle is burning. The hot throw is what fills a room with fragrance.
The viscosity of candle wax is a measure of how difficult it is for something to move through the wax. Warmer wax has less friction than hot wax, and the more viscous the wax, the harder it is for fragrance molecules to diffuse through it.
The concentration of oils in a candle impacts the diffusion of fragrance. Adding more oil increases the fragrance, similar to how increasing the dimmer switch on a light makes it brighter.
The molecular weight of the oil molecule also matters. Smaller, lighter molecules travel faster than larger, heavier ones. This is why you may smell certain notes of a candle early on, but not until later in the burn.
When making your own candles, you can control the strength of the fragrance by adjusting the amount of fragrance oil added. Additionally, certain types of wax, such as coconut and soy wax, tend to absorb oils better and produce a stronger scent.
By understanding these basic candle fragrance terms, you can make more informed decisions when purchasing or creating scented candles to ensure a stronger and more enjoyable fragrance experience.
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Frequently asked questions
The scent of a candle comes from the fragrance oils added to it. The more oil in the candle, the stronger the fragrance. You can add fragrance oil to an existing candle or ensure the ratio is high enough when making one.
Coconut and soy waxes tend to absorb oils better and have a stronger scent. Candles made from paraffin wax, which is made from petroleum byproducts, can be harmful to your health.
The candle size should mimic the size of the room. Large candles with two or three wicks produce larger wax pools, which create a stronger scent throw. Medium candles (7-10 oz.) with one wick are appropriate for a medium-sized room, such as a bedroom. Small candles (2-6 oz.) are only capable of scenting a small room, such as a bathroom.
Let the candle burn at least until the wax pool reaches the edge of the container. In general, this takes about an hour per inch in diameter or 2-3 hours for a 3" wide jar. Blowing it out before this will produce ""tunneling", wasting the wax that remains on the sides of the container.
