Brooke Martin
Candles are a popular home décor item, but do they ever go bad? The short answer is yes, candles do expire. However, the lifespan of a candle depends on various factors such as the type of wax used, the presence of fragrance oils or dyes, and storage conditions. While some candles, like those made with paraffin wax, can last almost indefinitely when stored properly, others like soy or coconut wax candles are best used within one to two years. Beeswax candles are known to have a long shelf life and can last several years, although they may develop a bloomed appearance with a frosty white exterior. Proper candle storage involves keeping them away from direct sunlight, heat, moisture, and strong scents, as these factors can impact the quality and performance of the candle. Additionally, storing candles upright and using a lid or cover can help maintain their condition. While expired candles may not be harmful, they may not provide the same fragrance intensity or burn as evenly as fresh candles.
| Characteristics | Values |
|---|---|
| Lifespan | Depends on the type of wax used, how it's stored, and the presence of preservatives |
| Scent loss | Gradual process; more noticeable after 6 months to a year |
| Colour degradation | Yes, over time |
| Burn time | Depends on the size of the candle, type of wax, and number of wicks |
| Expiry | Most candles expire, but not beeswax candles |
| Paraffin wax candles | Can last almost indefinitely with proper storage |
| Soy and coconut wax candles | Best used within 1-2 years |
| Discoloration | Exposure to UV rays and sunlight can cause discolouration |
| Storage | Store upright, in a cool, dry place, away from strong scents, and use a lid or cover |
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What You'll Learn
Beeswax candles don't expire
While candles do not exactly "expire", the lifetime of a candle depends on the type of wax used and how it is stored. Beeswax candles, for instance, do not expire. They can stay for long periods without degradation. They are known to be found in sunken ships that were several hundred years old and could still burn beautifully once the wick was dried out.
Beeswax candles are unique in that they do not go rancid. In fact, beeswax candles are known to ''bloom'' over time, which is an indication that they are pure beeswax. This blooming process may be undesirable to some, as it can mar the appearance of the candle, but it can be easily remedied by polishing the candle with a soft cloth. However, many people appreciate the frosted, bloomed look.
Other types of candles, such as soy and coconut wax candles, are best used within one to two years. These natural and organic waxes are known to offer clean and luxurious burning experiences. On the other hand, paraffin wax candles can last almost indefinitely when stored properly.
While beeswax candles may not expire, scented or coloured candles may spoil easily if left unsealed or exposed to sunlight for extended periods. This is because scent degradation occurs gradually, and the longer a candle is stored, the less scent it will produce when burned. Additionally, colour degradation can occur, causing the candle to fade or change colour over time, even with the use of UV protectant additives.
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Scented candles have an average lifespan of 3-4 years
To extend the life of your scented candles, it is recommended to store them in a cool, dry place, away from direct sunlight and strong scents. Keeping them upright and covered will also help preserve their scent and prevent dust and debris from settling on them. Additionally, trimming the wick before each use and avoiding burning the wax all the way down can help prolong the life of your candles.
While candles do not pose a safety threat if lit past their shelf life, they may not provide the same luxurious experience. Over time, candles can undergo scent degradation, colour degradation, cracking or drying out, and uneven burning. These factors can affect the fragrance, appearance, and burning quality of the candle.
It is worth noting that scent degradation occurs gradually and may not be noticeable for the first 6 months to a year, depending on the type of wax and the quality of fragrance oils used. However, the longer a candle is stored, the more scent degradation may occur. Therefore, it is advisable to burn candles as soon as possible to enjoy their fullest fragrance.
In summary, scented candles typically have a lifespan of 3-4 years, but with proper care and storage, they can be enjoyed for much longer. The key factors in extending their lifespan include the type of wax, storage conditions, and following certain preservation techniques.
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Soy candles last 1-2 years unburned
While candles don't exactly "expire", their lifetime depends on the type of wax used and how they are stored. Soy candles, for instance, are best used within a year or two. This is because soy wax is an organic, vegetable-based wax that is more prone to breaking down over time. Once they start to degrade, the wick may become clogged and the candle will be difficult to light.
To preserve your soy candles for longer, it is recommended to keep them away from direct sunlight and other harsh lights. Use a candle topper or a glass cloche to help maintain the fragrance, and store them somewhere dark, cool, and dry. Avoid areas with high humidity or moisture, such as bathrooms, and areas with sudden temperature changes, like those near radiators or vents.
The degradation of soy candles can be noticed through scent and colour changes. Scent degradation occurs when fragrance oil molecules slowly evaporate from the wax into the air, even when the candle isn't burning. This process happens gradually and is almost unnoticeable for the first six months to a year, depending on the type of wax and the quality of fragrance oils used. Colour degradation can also occur, causing the vibrant dyes added by candle companies to fade over time.
While soy candles have a shorter lifespan than beeswax or paraffin candles, they offer advantages such as being a healthier and more sustainable option. Soy wax is non-toxic when burned, making it better for air quality. Additionally, soy candles have a longer burn time than candles made from paraffin, stearin, or blended waxes, with an 8-ounce soy candle burning for approximately 48 hours.
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Paraffin candles can last indefinitely
While candles don't exactly "expire", their lifetime depends on the type of wax used and how they are stored. Paraffin candles, for instance, can last almost indefinitely when stored properly. Beeswax candles are also known to have a long shelf life. On the other hand, soy candles are best used within a year or two.
The lifetime of a candle can be affected by factors such as scent degradation, colour degradation, and the presence of preservatives. Scent degradation occurs when the molecules of fragrance oil in an unlit candle slowly evaporate into the air. This process happens gradually and is almost unnoticeable for the first 6 months to a year, depending on the type of wax and the quality of the fragrance oils used. Colour degradation can also occur, with candles losing their original colour over time.
To ensure that paraffin candles last as long as possible, it is important to store them correctly. When on display, keep candles away from direct sunlight and other harsh lights. Use a candle topper or a glass cloche to help preserve the fragrance longer. Store them somewhere dark, dry, cool, and well-ventilated. Avoid areas with high humidity or moisture, such as bathrooms, and areas with sudden changes in temperature, such as radiators or vents.
While paraffin candles can last indefinitely when stored properly, it is worth noting that there are potential health concerns associated with their use. Paraffin wax is derived from petroleum, a by-product of gasoline production, and has been found to release potentially harmful chemicals such as volatile organic compounds (VOCs) and phthalates. These chemicals have been linked to headaches, shortness of breath, and coughing. However, it is important to note that there is no definitive scientific evidence proving that burning candles, including paraffin candles, are harmful to human health.
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Signs of candle expiration
While candles do not have an expiration date, they can go bad over time. Here are some signs that your candle may have expired:
Scent Degradation
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 strong, it may be past its prime. Candles made from natural waxes like soy and coconut are more prone to scent degradation and should be used within one to two years.
Colour Degradation
If your candle has faded or changed colour, it is likely old. For example, a bright red candle that has faded to a pale salmon colour. While it may still burn okay, it won't be as aesthetically pleasing.
Dryness and Yellowing
If your candle was originally colourless and you notice yellowing or dry, cracked wax, it has probably expired. This is more common in paraffin wax candles, which can last indefinitely when stored properly.
Burning Issues
An expired candle may burn less evenly, have a shorter burn time, or burn ineffectively. This is due to the wax expiring and affecting the candle's performance, potentially clogging the wicks.
Unpleasant Smells
An expired candle may emit unpleasant or overpowering smells, which could indicate mould or other forms of contamination. If this occurs, it is best to dispose of the candle properly.
To prolong the life of your candles, store them in a cool, dry place away from direct sunlight and strong scents. Keep them upright and covered to prevent dust and preserve the scent.
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Frequently asked questions
Yes, candles can go bad, but they don't pose a threat if lit past their shelf life.
The lifetime of a candle depends on the type of wax used and how it's stored. Paraffin wax candles can last almost indefinitely when stored properly. Soy and coconut wax candles are best used within a year or two.
Check the fragrance. If the scent is weak or has changed, the candle may have expired. Discoloration, cracking or drying out, and uneven burning are other signs of expiration.
Keep candles in a cool, dry place, away from direct sunlight, strong scents, and sources of heat and moisture. Store them upright with a lid or cover.
Expired candles are unlikely to provide the same benefits as fresh, high-quality candles. They may burn less evenly, and their fragrance may not be as strong. However, they usually don't pose a safety threat if used in accordance with the original burning instructions.
