Ben Carter
Candles are a popular home décor item and are used in various celebrations. While they don't technically expire, older candles may not provide the same experience as when they were first purchased. Factors such as the type of wax, fragrance oils used, and storage conditions influence how long a candle lasts and its burn time. Natural wax candles like soy, beeswax, and coconut wax have a shorter shelf life, typically lasting between one to two years, while paraffin wax candles can last almost indefinitely when stored properly. Proper candle care, such as trimming the wick and burning for recommended durations, can also help extend a candle's lifespan.
| Characteristics | Values |
|---|---|
| Burn time | Depends on the size of the candle, type of wax, number of wicks, and melting point of the wax |
| Wax type | Paraffin wax, soy wax, beeswax, coconut wax |
| Scent | Fragrance oils deteriorate over time, causing the aroma of the candle to diminish |
| Storage | Store in a cool, dark, and dry place away from direct sunlight and extreme temperatures |
| Lifespan | Paraffin wax candles can last almost indefinitely; soy and coconut wax candles last 1-2 years |
| Candle care | Trim the wick to a quarter of an inch before lighting, burn for no longer than 4 hours at a time, keep away from flammable materials |
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What You'll Learn
Paraffin wax candles can last indefinitely if stored properly
While candles are a great addition to any home décor, they are also used in various rites and celebrations. Many people buy candles in bulk and may not get around to burning them all. So, it's important to know how long they last and if they expire.
The lifetime of a candle depends on the type of wax used and how it's stored. Paraffin wax candles, derived from petroleum, have a far longer shelf life than natural wax candles. They can last almost indefinitely when stored properly. Beeswax candles, for example, can last several years in storage. However, they may develop a "'bloom", appearing frosty white on the outside, which does not indicate expiration.
Paraffin wax is the most commonly used candle wax today and is ideal for highly fragranced candles with exceptional scent throw. It has a consistent, attractive appearance and predictability, making it a pleasure to work with. It also has a strong fragrance and colour retention when dyed.
To ensure that paraffin wax candles last longer, they should be stored in a cool, dry place, away from direct sunlight, heat, and humidity. Exposure to these factors can cause the fragrance oils to degrade and evaporate, resulting in reduced perfume. Therefore, it is recommended to use candles within a year of purchase to keep them smelling fresh and aromatic.
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Natural wax candles like soy, beeswax, and coconut have a shorter shelf life
Natural wax candles, such as those made from soy, beeswax, and coconut wax, have a shorter shelf life than those made from paraffin wax. This is because natural waxes are derived from plants and other natural resources, which eventually deteriorate over time.
Soy candles, for example, typically last between one and two years when unburned. After this time, the scent will likely begin to fade, and the colour may change. Coconut wax candles also tend to be at their best for one to two years after purchase. Beeswax candles can last several years in storage, but they may develop a bloom – a frosty white appearance – which does not indicate expiration but may be undesirable aesthetically.
Paraffin wax candles, on the other hand, can last almost indefinitely when stored correctly. This is because paraffin wax is a low-grade petroleum wax that is more stable than natural waxes. However, if stored in a warm, closed environment with no airflow, paraffin wax may melt within its packaging and become unusable.
To extend the life of natural wax candles, it is important to store them correctly. Sunlight, heat, and humidity can cause fragrance oils to degrade and evaporate, reducing the aroma of the candle. Therefore, natural wax candles should be stored in a cool, dark, and dry place.
Overall, while natural wax candles made from soy, beeswax, and coconut wax may have a shorter shelf life than paraffin wax candles, they can still be safely burned after their recommended usage period. However, the fragrance and colour may not be as strong or vibrant as when the candle was first purchased.
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Scented candles will lose their fragrance over time
The quality of the fragrance oil used also impacts the longevity of a candle's aroma. Higher-quality fragrance oils will typically last longer than inexpensive ones, which may disintegrate after a few months. Additionally, proper storage is crucial to preserving a candle's scent. Candles should be kept in a cool, dry place, away from direct sunlight, heat, and humidity. Exposure to these elements can cause the fragrance oils to degrade and evaporate, resulting in a weaker scent.
While a candle's fragrance may diminish over time, it does not necessarily mean it has expired. Older candles can still be safely burned, but they may not offer the same luxurious experience as when they were first purchased. To determine if a candle has truly expired, you can try gently scratching the surface and smelling it. If the fragrance is still detectable, it can likely be burned safely, although the scent may not be as strong as it once was.
To prolong the life of your scented candles, it is recommended to burn them for no more than four hours at a time and to trim the wick regularly. Additionally, storing them in a dark, cool place away from direct sunlight and harsh lights can help preserve their fragrance for a more extended period.
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Candle colour can fade or change
Candles are a common home décor item, and many people buy them in bulk. While candles do not technically "expire" in the same way that food does, they can undergo a decline in quality and performance over time. One of the most noticeable signs of ageing in candles is the fading or changing of their colour.
Environmental Factors
Environmental factors, such as exposure to light, temperature, humidity, and airflow, can contribute to colour changes in candles. Direct sunlight and UV light sources can cause the wax to oxidize, resulting in discolouration. This process is similar to how sunlight fades coloured paper or fabric over time. To prevent this, it is recommended to store candles in a cool, dry place away from direct sunlight and other UV light sources. Additionally, using UV-resistant glass or other materials can help block out UV rays and protect the colour of the candle.
Type of Wax and Additives
The type of wax used in the candle can also impact its colour retention. For example, soy wax may turn yellowish over time due to oxidation. Natural dyes or pigments in the wax may also cause the candle to fade or change colour as the wax oxidizes. Certain fragrances or essential oils can react with the wax, leading to discolouration. To prevent this, choosing high-quality, stable additives specifically designed for candle-making is important.
Manufacturing Inconsistencies
Inconsistencies in the manufacturing process can also lead to colour variations in candles. The type of dye or pigment used can affect the final colour, and even small changes in the amount of additive can impact the colour and appearance. Additionally, the amount and type of fragrance oil used can vary from batch to batch, resulting in colour inconsistencies.
While candle colour changes may not impact their burn quality, it can be disappointing for those who value the aesthetic appeal of their candles. By understanding the factors that contribute to colour fading and discolouration, candle enthusiasts can take steps to prevent or slow down these changes and maintain the original appearance of their candles.
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Proper candle care can extend the life of your candles
To preserve the scent, store your candles in a cool, dry, and dark place, away from direct sunlight, heat, humidity, and extreme temperatures. Avoid areas with sudden changes in temperature, such as near radiators or vents. Keep them covered to prevent dust accumulation and protect the fragrance.
Additionally, regularly trimming the wick to about 1/4 inch before lighting can prolong the candle's life. A longer wick produces a larger flame, causing the candle to burn faster and increasing the risk of soot buildup. It is also important to not burn a candle for longer than four hours at a time to prevent the wick from becoming too long.
The type of wax also impacts the longevity of a candle. Paraffin wax candles, derived from petroleum, have a longer shelf life than natural wax candles, often lasting up to five years when stored properly. Natural wax candles, such as soy, beeswax, and coconut wax, typically last between one to two years unburned.
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Frequently asked questions
Candles do not technically expire, but they do have a shelf life. The scent and colour of a candle can diminish over time, and it is recommended to use a candle within a year or two of purchase to keep it smelling fresh.
The lifespan of a candle depends on the type of wax, the quality of fragrance oil, and how it is stored. Paraffin wax candles can last almost indefinitely when stored properly, while natural wax candles like soy, beeswax, and coconut wax have a shelf life of one to two years.
A candle may be too old if it shows signs of discolouration, has a weak or altered scent, or doesn't burn properly. If something seems off, it is best to replace the candle.
To make your candles last longer, store them in a cool, dark, and dry place away from direct sunlight, heat, and humidity. Additionally, trimming the wick to a quarter of an inch before lighting can help prevent soot buildup and ensure an even burn.
