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Understanding Fragrance Oils
Fragrance oils are a key component in candle making, providing the scent that makes candles appealing and enjoyable. However, when it comes to using old fragrance oils, there are several factors to consider. Over time, fragrance oils can lose their potency, which may result in a diluted or diminished scent throw in your finished candles.
Additionally, the chemical composition of fragrance oils can change as they age. Exposure to light, heat, and air can lead to oxidation, which might alter the scent profile. Therefore, it’s important to evaluate the condition of your old fragrance oils before deciding to use them in your candle-making process.
Signs of Degradation
| Product Name | Scented Reed Diffuser |
| Material | Wood |
| Suitable for | Gymnasium |
| Scents | Winter Fruit, Pear & Pink Musk |
| Capacity | 180ml |
| Color | Pink |
| Origin | China Company |
| Duration | 1 year |
One of the first signs that a fragrance oil may no longer be suitable for use is a change in its smell. If the aroma has become off-putting or has significantly faded, it may not provide the desired scent experience in your candles. Trust your nose—if it doesn’t smell right, it’s best to discard it.
Another indicator of degradation is the appearance of the oil itself. If you notice any separation, cloudiness, or sediment at the bottom of the bottle, these could be signs that the oil has degraded and may not perform well in your candles. Always check for these visual cues before proceeding with your project.
Best Practices for Storage

To prolong the life of your fragrance oils, proper storage is essential. Keeping them in a cool, dark place away from direct sunlight can help prevent oxidation and maintain their integrity. Additionally, ensuring that the containers are tightly sealed will minimize exposure to air, further extending the shelf life of the oils.
It’s also advisable to label your fragrance oils with the date of purchase or opening. This practice allows you to keep track of how long you’ve had the oils and helps you make informed decisions about when to use or discard them. Regularly reviewing your supplies can ensure that you are only using the freshest materials in your candle-making endeavors.
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