Brooke Martin
Candles don't have an expiration date, but their quality can degrade over time. The scent of an unlit candle will weaken with age due to the evaporation of fragrance oil molecules from the wax into the air. This degradation occurs very gradually and is almost unnoticeable for the first six months to a year, depending on the type of wax and quality of fragrance oils used. The colour of candles can also change over time, especially if exposed to UV light. To preserve the colour and scent of an unlit candle, it should be stored in a cool, dark place and burned within a year of purchase for the best experience.
| Characteristics | Values |
|---|---|
| Scent | Unlit candles may lose their scent over time due to the slow evaporation of fragrance oil molecules. The rate of scent degradation depends on the type of wax and quality of fragrance oils used. |
| Colour | Candles with coloured wax may fade over time, especially if exposed to UV light. Some candle makers use UV protectant additives to slow down this process. |
| Storage | To preserve the scent and colour of an unlit candle, it should be stored in a dark, cool place with low humidity and consistent temperature. |
| Lifespan | Candles do not typically have an expiration date, but their quality can degrade over time. Paraffin wax candles can last indefinitely in the right storage conditions, while natural wax blends like soy and coconut have a shorter shelf life. Beeswax candles can last several years but may develop a "bloom" appearance. |
| Usage | It is recommended to burn candles within one to two years of purchase for the best experience. Older candles may still be safe to burn but may not perform optimally. |
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What You'll Learn
Scent degradation
Scented candles are a wonderful way to fill your space with fragrance and create an inviting atmosphere. However, over time, unlit candles can lose their scent due to a process called scent degradation. This occurs when the fragrance oil molecules slowly evaporate from the wax into the surrounding air, resulting in a weaker fragrance or even complete scent loss.
The rate of scent degradation depends on several factors, including the type of wax and the quality of the fragrance oils used. Natural fragrances, for instance, tend to degrade faster than synthetic fragrances. Additionally, proper storage plays a crucial role in preserving the scent of a candle. Storing candles in a cool, dark place, away from direct sunlight and UV light exposure, can significantly slow down scent degradation.
The initial strength of the fragrance also impacts its longevity. Candles with a higher fragrance load may retain their scent for longer, although this can vary depending on the specific fragrance used. It's worth noting that the first six months to a year of storage typically show little to no noticeable change in scent, but the longer the candle is stored, the more significant the degradation becomes.
To prolong the scent of your unlit candles, consider using a candle topper or a glass cloche. These simple tools help to contain the fragrance and slow down the evaporation of the fragrance oils. Additionally, storing your candles in a cool, dry place with consistent temperatures can also extend their lifespan.
While scent degradation is a natural process that occurs in all scented candles, taking these proactive steps can help delay it, ensuring that you get to enjoy the full aromatic experience of your candles for a more extended period.
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Colour degradation
The type of dye used in the wax also affects colour degradation. Some candles may use UV protectant additives in the wax, which can slow down the discolouration process. Additionally, the individual fragrance oil used in the candle can contribute to discolouration, although not all fragrances will cause this issue. While discolouration may impact the candle's appearance, it does not usually affect its burn or fragrance.
The storage conditions and environment play a crucial role in colour preservation. Candles kept in a dark, cool place with low humidity, minimal moisture, and stable temperatures tend to retain their colour longer. Proper storage can significantly extend the life of a candle, although it is generally recommended to burn candles within a year of purchase for the optimal experience.
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Storage
Candles do not typically have an expiration date, but their quality can degrade over time. The scent of an unlit candle will eventually degrade due to the evaporation of fragrance oil molecules from the wax into the air. This occurs very gradually, and generally goes unnoticed for the first 6 months to a year, depending on the type of wax and quality of fragrance oils used. However, the longer an unlit candle is stored, the less scent it will produce when burned.
To preserve the colour of a candle, it should be stored in a dark place, away from direct sunlight or bright indoor lights, as UV light exposure can cause the dyes in the wax to oxidise and degrade. Candles made with natural soy or coconut wax blends tend to have a shorter shelf life than those made with paraffin. Beeswax candles can last several years in storage, although they may develop a "'bloom'" appearance, with a frosty white exterior.
To ensure the longevity of an unlit candle, it should be stored in a cool, dry place, avoiding areas with high humidity, moisture, or sudden temperature changes. A candle topper or glass cloche can also be used to preserve the fragrance for longer. While candles can be safely burned past their shelf life, they may burn less evenly and may not deliver the same fragrance intensity.
To determine whether an unlit candle has expired, you can perform a cold throw test by gently scratching the outer surface and smelling it. If the fragrance is weak or undetectable, the candle may have passed its prime. However, lighting the candle may release the fragrance oils from the inner wax, resulting in a stronger scent.
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Lifespan
The lifespan of an unlit candle depends on several factors, including the type of wax, fragrance, and other ingredients used, as well as how it is stored.
In terms of scent, candles generally retain their fragrance for around 6 months to a year, depending on the type of wax and quality of fragrance oils. This scent degradation occurs very gradually and is almost unnoticeable at first. However, the longer an unlit candle is stored, the less scent it will produce when eventually burned. To preserve the fragrance, it is recommended to use a candle topper or a glass cloche and store the candle in a dark, cool place away from direct sunlight or bright indoor lights, as UV light can cause the fragrance oil molecules to evaporate more quickly.
Regarding colour, candles with coloured wax may experience fading over time, especially if exposed to UV light. Candle makers sometimes mix UV protectant additives into the wax to slow down the discoloration process. To preserve the colour, it is recommended to store candles in a dark place away from direct sunlight.
While candles do not have a specific expiration date, their quality can degrade over time. Most candles will burn at their finest within 1 to 2 years of purchase, although some types of candles, such as those made with natural soy or coconut wax blends, may have a slightly shorter shelf life. Beeswax candles, for example, can last several years in storage but may develop a "bloomed" appearance with a frosty white exterior. To ensure the best burning experience, it is recommended to burn candles within a year of unpacking them.
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Wax type
The type of wax used in a candle is a key factor in determining its lifespan. While candles do not have an expiration date, their quality can degrade over time.
Paraffin wax, a low-grade petroleum wax commonly found in cheaper candles, is extremely stable and can last virtually forever when stored under the right conditions. However, natural waxes like soy, coconut, and beeswax tend to have a shorter shelf life. Soy and coconut wax blends are renowned for offering clean and luxurious burning experiences, but they may not last as long as paraffin wax candles. Beeswax candles can last several years in storage, but they may develop a "bloomed" appearance, looking frosty white on the outside.
The scent of a candle is another important consideration. Fragrance oils in candles can evaporate slowly over time, causing scent degradation. This process occurs very gradually and may not be noticeable for the first 6 months to a year, depending on the type of wax and quality of fragrance oils used. To preserve the fragrance, it is recommended to store candles in a dark, cool place away from humidity, moisture, and sudden temperature changes. Using a candle topper or a glass cloche can also help extend the life of the fragrance.
The colour of a candle can also change over time, especially if exposed to UV light. Candles with coloured wax may fade due to the oxidation and degradation of dyes. To preserve the colour, store candles away from direct sunlight or bright indoor lights. Some candle makers use UV protectant additives in the wax to slow down the discoloration process.
Overall, the type of wax, fragrance, and other ingredients in a candle will determine its lifespan. Proper storage and care can help extend the life of a candle, but it is generally recommended to burn candles within a year of purchase for the best experience.
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Frequently asked questions
Unlit candles generally last around 12 to 16 months when properly stored. However, the lifetime of a candle depends on the type of wax used and how it is stored.
The fragrance of an unlit candle weakens with age. If you have trouble detecting the scent, gently scratch the outer surface and if it still doesn’t smell, it may have passed its prime.
To extend the life of an unlit candle, store it in a dark, cool place away from direct sunlight and bright indoor lights.
