Maddie James
Candles are a great way to create a cosy atmosphere, but how long do they last if left unused? The answer depends on several factors, including the type of wax, additives, and, most importantly, how they are stored. While candles don't exactly expire, their scent and colour can degrade over time, especially if they are left unsealed or exposed to direct sunlight. Proper storage in a cool, dry, and dark place will ensure that your candles last for years, with beeswax candles boasting the longest shelf life. Additionally, trimming the wick to a quarter of an inch can help elongate burn time. So, if you're stocking up on candles or pulling out some old favourites, proper storage and wick maintenance will ensure you get the most out of your candles.
| Characteristics | Values |
|---|---|
| Wax Type | Beeswax candles have the longest shelf life and burn time. Soy wax has a shorter shelf life than beeswax but a longer burn time than paraffin wax. Paraffin wax has a shelf life of 5 years. Citronella candles have a shelf life of 24 months. |
| Wick Length | A longer wick will cause the candle to burn faster. Keeping the wick no longer than 1/4 inch will elongate its burn time. |
| Storage | Store in a cool, dry, and dark place. Exposure to sunlight can cause discolouration and loss of scent. Use airtight containers. |
| Additives | Additives like UV inhibitors, antioxidants, and fragrance/essential oils can increase shelf life but may affect burn time. |
| Scent | Fragrance tends to dissipate over time, especially if not stored correctly. Beeswax candles tend to retain their scent for longer. |
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What You'll Learn
Beeswax candles last the longest
Candles are made from organic materials and will eventually decay, but they do not have an expiry date. The scent and colour will fade over time, but a candle will burn as long as there is wax and a wick. To maximise shelf life, candles should be stored in a cool, dry, and dark environment, away from sunlight, in airtight containers.
Beeswax candles have the longest shelf life of any candle. The substances in beeswax are known for their conservative properties, and they were even used by the ancient Egyptians when mummifying the dead. Beeswax candles have been found in sunken ships several hundred years old, and they could still burn beautifully once the wick was dried out.
Beeswax candles are more expensive than other types of candles due to the process of making and harvesting them. However, they offer excellent value for money because of their long burn times. For example, a 12" beeswax taper candle can burn for up to nine hours, while a 3" x 9" beeswax pillar candle can burn for approximately 170 hours.
In summary, beeswax candles are the longest-lasting type of candle due to the natural properties of beeswax and the impressive burn times they offer. To make your candles last longer, regardless of type, ensure you store them correctly and keep the wick no longer than 1/4 inch to elongate their burn time.
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Store candles in a cool, dry place
Candles are sensitive to extreme heat and moisture. Therefore, the best way to store unused candles is in a cool, dry place.
Keeping candles in a cool, dry place will ensure that they last for years before their burn time decreases. A cool temperature will preserve the wax for longer, as wax is sensitive to heat. When wax is exposed to heat, it melts more quickly, and the candle will burn faster. In addition, a candle kept in a cool place will be less likely to bend or melt, which will ensure that it retains its shape.
A cool, dry place will also prevent humidity from compromising the wax and wick. Humidity will cause inefficient burning and premature extinguishing of the flame. A damp wick may not light at all, and if it does, it will not burn optimally.
In addition, storing candles in a cool, dry place will protect them from direct sunlight, which can cause the candle to melt and lose wax. Sunlight will also cause the colour of the candle to fade. This is because UV radiation from the sun creates a chemical reaction and a breakdown in the wax, which causes discolouration.
Therefore, storing candles in a cool, dry place will ensure that they burn for longer and retain their shape and colour.
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Scented candles lose fragrance over time
Scented candles certainly do lose their fragrance over time, but there are ways to delay this process and ensure your candles remain fragrant for longer.
The lifespan of a candle depends on several factors, including the type of wax, the size of the candle, the quality of the fragrance oils, and storage conditions. Soy wax, for example, is known for its clean, slow burn and ability to hold fragrance well, providing a steady scent experience. On the other hand, paraffin wax has a stronger initial scent throw but may not last as long as soy wax. Beeswax is naturally aromatic and holds scent well, though it may be less potent than soy or paraffin wax for strong fragrances.
High-quality fragrance oils are crucial for scent longevity. Premium fragrance oils provide a rich scent that lasts, while cheaper oils may evaporate or lose potency more quickly. Exposure to air, heat, and light can cause fragrance oils to degrade, so it's important to store candles in a cool, dry place away from direct sunlight. UV rays can break down scent molecules, making the fragrance less potent. Additionally, temperature fluctuations and high humidity can affect a candle's scent, as humidity can compromise the wax and lead to inefficient burning.
Proper storage is key to preserving a candle's scent. If your candle has a lid, keep it covered when not in use to prevent air exposure, which can weaken the fragrance over time. For candles without lids, consider storing them in an airtight container. A cabinet, drawer, or closet shelf is ideal for keeping candles out of direct sunlight and protecting their scent.
While candles can lose their scent over time, with proper care and storage, most candles can retain their fragrance for around 1-2 years. To get the most out of your scented candles, try to use them within a year and a half of purchasing them and enjoy your favourite fragrances for longer.
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Candle wax can spoil and cease to burn
Candle wax can indeed spoil and cease to burn, but this depends on the type of wax and how it is stored.
Firstly, it is important to note that candles do not decompose, but they are made with organic materials that will eventually decay. The lifespan of a candle depends on its ingredients, and how well it is cared for. Scented candles, for example, will lose their fragrance over time, even if stored correctly. However, the fragrance is trapped within the wax, so once lit, it will be released again. The scent and colour will be the first indicators of decay, but eventually, the integrity of the wax itself will be compromised.
Beeswax candles have the longest shelf life of any candle due to the conservative properties of beeswax. They have even been found in sunken ships, several hundred years old, and could still be burned once the wick was dried out. Candles made from other types of wax will still burn years later but will be affected by how the candle was made. Commercial-grade candles have preservatives to keep the wax from going rancid and yellowing.
To maximise the shelf life of candles, they should be stored in airtight containers in a cool, dry, and dark place. Natural sunlight can cause chemical reactions within the wax due to harmful UV rays. Humidity will also compromise the wax and lead to inefficient burning and premature extinguishing of the flame. A damp wick may not light at all.
Additionally, the first time you burn a new candle, ensure it is not extinguished until the wax has melted all the way across the surface. This helps prevent tunnelling issues. It is also important to keep the wick trimmed to about a quarter of an inch above the wax. A longer wick will cause the wax to burn quicker than needed due to excess heat.
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A longer wick will burn the candle quicker
Candles are a great way to create ambiance or provide emergency lighting. They are made up of wax and a wick, and as long as these two components remain, a candle will burn. However, the length of the wick plays a crucial role in determining how quickly a candle burns down.
A longer wick will burn a candle quicker due to the increased flame size. The wick absorbs the melted wax and transports it upwards to fuel the flame. When the wick is too long, it can cause an excessively large flame, leading to several issues. Firstly, a larger flame consumes wax more rapidly, reducing the overall lifespan of the candle. Secondly, the increased heat from the larger flame can cause the wax to melt unevenly, leading to a phenomenon known as "wax tunnelling." This occurs when only the wax near the wick melts and burns, leaving unburned wax around the edges. Not only does this result in wasted wax, but it can also cause the candle to become unstable, potentially tipping or breaking.
Additionally, longer wicks can produce unstable flames that cause the wax to drip messily. The larger flames also increase the risk of accidental fires if they come into contact with flammable materials. Therefore, it is essential to regularly trim the wick to the recommended length of about 1/4 inch. This helps maintain a steady, even flame, ensuring the candle burns more efficiently and prolonging its lifespan.
The type of wax used in a candle also affects burn time. Natural waxes like beeswax, coconut wax, or soy wax are denser and provide a slower burn time. Beeswax, in particular, is known for its long shelf life and conservative properties, making it an excellent choice for emergency kits. On the other hand, paraffin wax, a common petroleum byproduct used in candle-making, burns much faster and has even been linked to toxic side effects.
Furthermore, environmental factors can impact how quickly a candle burns. Storing candles in a cool, dry, and sheltered environment will help prolong their lifespan. Humidity can cause the wax to become softer, leading to a faster burn rate. Additionally, drafts or breezes can cause the flame to move across the wax more quickly, melting it at a faster rate. Therefore, it is recommended to keep candles in a calm, still area to ensure the most efficient burn.
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Frequently asked questions
Candles do not have an expiry date, but they can lose their scent and colour over time. The wax itself does not expire, but the fragrance and essential oils added to the candle can affect its burn rate.
Scented candles should be used within a year of opening them. However, beeswax candles can last for many years, as the scent tends to be stronger and longer-lasting when mixed with beeswax.
To make your candles last longer, store them in a cool, dry, and dark place. Keep them away from direct sunlight to prevent discolouration and a loss of scent. Additionally, trimming the wick to a length of 1/4 inch will elongate the burn time.
Yes, different types of candles have different lifespans. For example, beeswax and soy wax candles have a longer burn time than paraffin wax candles, but soy wax has a shorter shelf life than beeswax. Citronella candles typically have a shelf life of 24 months, while Yankee candles have a shelf life of about 5 years.
