How to ensure that the scent of scented candles is long-lasting and released evenly to enhance the user experience?

Ensuring that the scent of scented candles is long-lasting and released evenly is the key to enhancing the user experience. Here are some methods and strategies that can help achieve this goal:

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1. Optimize the fragrance formula
Choose high-quality fragrances: Using high-quality essential oils or fragrances is the basis for ensuring that the fragrance is long-lasting and even. Natural essential oils are generally longer-lasting and more stable than synthetic fragrances.
Adjust the fragrance concentration: Adjust the amount of fragrance added according to the type and purpose of the candle. Generally speaking, the fragrance concentration between 6% and 10% is an ideal range. Too high may cause the fragrance to be too strong, and too low may not be released for a long time.
Use compound fragrances: Using a combination of multiple fragrances can enhance the layering and persistence of the fragrance. For example, combining top notes (such as citrus), middle notes (such as flowers) and base notes (such as woody fragrance) allows the fragrance to gradually unfold during the burning process.

2. Choose the right wax
Wax type: Different waxes have different carrying capacity and release effects on fragrances. For example:
Soy wax: has good scent retention, releases scent evenly when burning, and is environmentally friendly and smokeless.
Coconut wax: has a fine texture, can release scent better when burning, and is suitable for high-end scented candles.
Paraffin wax: has a lower cost, but may produce smoke when burning, and the release effect of scent is slightly worse.
Melting point of wax: It is also important to choose the right melting point. Waxes with lower melting points (such as soy wax) usually release scent better because they are easier to diffuse fragrance when burning.

3. Optimization of candle making process
Preheating wax: Before adding fragrance, heat the wax to the appropriate temperature (usually 60-70°C), then slowly add fragrance and stir evenly. This helps the fragrance dissolve better and distribute evenly.
Stir evenly: After the fragrance is added to the wax, continue to stir until the wax cools to about 40°C. This ensures that the fragrance does not precipitate, thereby achieving uniform release.
Control the cooling speed: Slowly cooling the wax can avoid precipitation or stratification of fragrance. After pouring the wax into the mold, let it cool naturally at room temperature instead of cooling it quickly.

4. Selection and treatment of candle wicks
Choose the right candle wick: The thickness and material of the candle wick will affect the burning speed and fragrance release. Generally speaking, cotton wicks are the most commonly used choice because they burn steadily and smokelessly.
Trimming of candle wicks: Before the first lighting, trim the candle wick to about 6mm. This ensures that the flame is of moderate size during burning and avoids excessive flames that cause the fragrance to evaporate quickly.
Ensure that the candle wick is centered: During the candle cooling process, ensure that the candle wick is always centered. A skewed candle wick may cause uneven burning and affect the release of fragrance.

5. Use and maintenance of candles
First burning: It is recommended that users let the candle burn long enough until the wax surface is completely melted when lighting it for the first time. This ensures that the candle burns evenly in subsequent use, thereby better releasing the fragrance.
Avoid frequent extinguishing: Frequent extinguishing and relighting of candles may cause the fragrance to evaporate too quickly. It is recommended that users burn for a longer time at a time when needed.
Storage conditions: Store candles in a cool, dry place without direct sunlight to prevent the fragrance from evaporating when not in use.