Why does the surface of the candles you make often have white frosting and bubbles? This may be related to the following four situations:
Incorrect wax ratio. For instance, natural plant-based waxes such as soy wax tend to form white frosting. When you make candles, it's advisable to mix them in a 1:1 ratio with white stearin wax. This can prevent the appearance of white frost and increase the hardness of the candles.
Inappropriate temperature. If white frost persists even after the addition of external additives, it's likely that the temperature used for wax casting is probably incorrect. When making with silicone moulds, the wax pouring temperature should usually be around 75-85 degrees Celsius. Temperatures that are too high or too low can result in white icing or bubbles on the surface of the candle.
Preheat the moulds properly. Especially with pure natural plant-based wax materials, they're very sensitive to temperature and their melting point is low. If there are a lot of lumps left at the bottom when you pour the wax into the moulds, it's best to remove them early and wait until the residual heat melts them completely when you stir them. Don't wait until they're visibly melted to avoid overheating, which can result in white frosting.
Avoid repeated heating and melting of the moulds. When you use new silicone moulds, the soft silicone can release internal silicone oil when heated, which can later precipitate and form white frosting. To prevent this, it's better to use the moulds several times to allow them to stabilise.
We hope that these suggestions will help you to solve the problem of white frosting and bubbles when making candles
