Most people have candles stored somewhere at home that have been there for quite some time. At some point, the question arises: do they actually go bad? Candles do not spoil in the traditional sense, but they can lose quality over time. After 12 to 18 months, scented candles may start to lose their fragrance or become discoloured, while wax candles may burn less effectively. However, when stored in a dry, cool and dark place, they can usually last for many years. This article explains what happens over time and how to recognise the signs.
At a glance
- Loss of quality: Fragrance oils evaporate or change over time, which can cause a candle to smell rancid or lose much of its scent
- Visual changes: Candles can fade, turn yellow or collect dust, especially when stored in direct light
- Burning behaviour: Older candles often burn less effectively, flicker more or the wick may be difficult to light
- Storage: When stored at 15–20°C in a dark and dry place, candles usually last for many years
- Recommended usage period: Scented candles: 12–18 months; unscented candles: up to several years
- Wax and wax type affect storage stability – this applies to finished candles as well as candle-making materials
How long do candles last?
How long a candle lasts depends mainly on the type of wax it is made from. Paraffin, as a mineral wax, is very stable and hardly oxidises – an unscented paraffin candle can last for several years, and sometimes even decades, when stored correctly. Plant-based waxes such as soy or rapeseed wax are more sensitive: they react more strongly to temperature fluctuations and light, and the fragrance oil contained within them evaporates more quickly.
|
Candle type |
Recommended usage period |
Main limitation |
|
Unscented paraffin candle |
Several years, often without a fixed limit |
May slightly yellow when exposed to UV light |
|
Scented candle (paraffin) |
2–3 years |
Fragrance oil fades over time; synthetic fragrances usually last longer |
|
Scented candle (soy wax) |
12–18 months |
Soy wax is more sensitive to light and temperature changes |
|
Beeswax candle |
2–5 years |
A natural white bloom may appear, but it does not affect quality |
|
Tealights (paraffin) |
3–5 years |
The wick may become brittle after very long storage |
|
Tealights (natural wax/with fragrance) |
1–2 years |
Fragrance evaporates and the wax may develop a rancid smell |
| Kerzentyp | Empfohlene Verwendungsdauer | Wichtigste Einschränkung |
|---|---|---|
| Paraffinkerze, ohne Duft | Mehrere Jahre, oft unbegrenzt | Kann bei UV-Licht leicht vergilben |
| Duftkerze (Paraffin) | 2–3 Jahre | Duftöl lässt nach, synthetische Düfte halten länger |
| Duftkerze (Sojawachs) | 12–18 Monate | Sojawachs reagiert empfindlicher auf Licht und Temperatur |
| Bienenwachskerze | 2–5 Jahre | Natürlicher Weißschleier möglich, beeinträchtigt die Qualität nicht |
| Teelichter (Paraffin) | 3–5 Jahre | Docht kann bei langer Lagerung brüchig werden |
| Teelichter (Naturwachs/mit Duft) | 1–2 Jahre | Duft verflüchtigt sich, Wachs kann ranzig riechen |
How can you tell if a candle has expired?
Three things reveal whether a candle is still in good condition: colour, scent and burning performance. As long as at least two of these have not noticeably deteriorated, the candle can usually still be lit – even if the fragrance is weaker and the flame burns less steadily than it did when it was new.
-
Colour
Has the candle lost its colour, faded or has the surface turned yellow or brown? This is a sign that the dye or wax has reacted over time. With light-coloured candles, slight yellowing caused by UV light is normal and harmless. Strong discolouration can indicate poor storage conditions.
-
Scent
Does the candle no longer smell at all or does it smell different from usual? Has the fragrance separated from the wax – meaning the wax itself no longer carries the scent, even though the candle used to have a strong fragrance? This is a clear sign that the fragrance oil has evaporated or oxidised. If the wax smells rancid, the candle should be discarded.
-
Burning performance
Lighting the candle shows its true condition. A flame that remains very small, sputters or repeatedly goes out is a sign of a blocked wick. Changes in the fragrance oil and wax can cause residues to build up on the wick, preventing it from burning properly. If this happens, it is time to replace the candle or melt down the wax and reuse it.
Can tealights go bad?
Paraffin tealights without added fragrance can last for a very long time when stored in a dry and cool place – often 3 to 5 years without any noticeable loss of quality. Paraffin itself hardly oxidises. The critical point is the wick: During very long storage, it can become brittle, absorb moisture or shift within the wax, which may lead to uneven burning.
Tealights with fragrance or those made from natural waxes are more sensitive. Their scent can noticeably fade after 1–2 years, and plant-based waxes may become softer on the surface or develop discolouration when exposed to temperature fluctuations.
Can scented candles expire?
Scented candles do not expire in the traditional sense. However, the fragrance oil slowly evaporates through the wax surface and oxidises over time. The cold throw – meaning how the candle smells when it is not lit – usually fades first. The hot throw, which is the scent released while the candle is burning, tends to last slightly longer.
Natural fragrance oils and essential oils are less stable than synthetic fragrance compositions. Anyone making or buying candles with essential oils in soy wax should keep this in mind: this combination is particularly high-quality, but it also has the shortest shelf life.
How to store candles properly
Storage often has a greater impact on shelf life than the candle itself. By following these five tips, you can get much more out of your candles:
- Cool and dry: Ideally below 25°C, with no temperature fluctuations. Basements, drawers or closed cupboards are well suited for storage.
- Protected from light: UV light breaks down both colour and fragrance. Avoid storing candles on windowsills or under spotlights.
- Keep covered: Cover scented candles after opening or during longer periods of storage – a lid or box helps slow down the evaporation of fragrance oils.
- Lying down or standing up? Taper candles and pillar candles are best stored lying flat to prevent them from bending. Container candles in jars should be stored upright.
- Not in the bathroom or kitchen: Moisture and steam can damage the wick and affect the wax.
Conclusion
Candles do not go bad like food, but they do change over time. Their scent, colour and burning performance can decline – how quickly this happens depends on the type of wax and how the candle is stored. Scented candles made from natural waxes are the most sensitive and should ideally be used within 12 to 18 months. Paraffin and beeswax candles last considerably longer.
Anyone who wants to actively extend the shelf life of their candles should store them in a cool, dark and dry place.
Our fragrance retention additive significantly slows down the evaporation of fragrance oils from wax and is ideal for anyone who wants to store or sell candles for longer periods. Our UV stabiliser helps protect against colour fading caused by light exposure.