What is Candle Frosting And How to Minimize It

If you have been crafting candles for a long time, you might know what frosting on candles is. But let me clarify it for you. Frosting, also known as blooming, occurs due to temperature changes over time, causing a crystalline layer to form on candles.

It only affects the appearance of candles and not their burning parameters. In this article, you will learn everything about frosting and how to prevent it.

Understanding Frosting on Soy Wax Candles

Soy wax is a natural and renewable resource, making it a popular choice for candle makers. However, its natural makeup makes it prone to frosting compared to other types of waxes. Frosting happens when soy wax molecules rearrange themselves as the candle cools down, leading to the formation of tiny crystals. Frosting indicates that you are burning a natural wax-made candle.

What Causes Frosting on Candles

• Composition of wax: It occurs on various waxes, but natural and soy waxes are more prone to frosting. Frosting leads to discoloration without hampering the burning parameters, guaranteeing the wax used is 100% natural.
• Cooling process during candle making: A well controlled cooling process is essential to achieving a smooth finish on candles. Uneven cooling or rapid temperature changes could lead to crystallization and frosting.
• Temperature fluctuations during storage and shipping: Rapid temperature changes during storage or shipping disrupt formed crystals, leading to frosting upon cooling.
• Container type and design: The type of container impacts how visible frosting is. Clear glass shows frosting more prominently, while opaque containers minimize its visibility.

How to Avoid Candle Frosting

Here are some tips and tricks to prevent frosting on the candles you craft with love and care:

Proper Wax Selection and Handling

Natural waxes are prone to developing frosting over time. While additives or synthetic waxes can delay this, using natural wax is recommended for health reasons despite potential frosting.

Controlling Pouring and Cooling Temperatures

Ideally, heat soy wax to 85°C and pour slightly cooler. Maintain a cooling temperature around 22°C to prevent temperature fluctuations that cause frosting.

Using Additives or Pre Treating Containers

• Add 2-3% stearic acid to prevent frosting and enhance glass adhesion. Preheat containers between 43-51°C to reduce the impact of cold wax.

Managing Storage Conditions

Avoid storing candles in extreme temperatures that cause wax molecules to revert, potentially causing frosting. Opaque containers can hide frosting effectively.

Solutions for Candle Frosting

If you still face frosting issues, consider these methods to address them:

• Use a Heat gun: Apply heat around the container with a heat gun to remove frosting. Repeat as necessary until resolved.
• Opt for Opaque Containers: Opaque containers effectively conceal frosting, maintaining vibrant colors or a clean look.

Conclusion

Frosting, while not ideal, indicates the quality and natural composition of the wax used, commonly found in natural waxes. It results from rapid changes in cooling or pouring temperatures, or storage conditions. Opaque containers are the best solution for minimizing frosting while preserving the integrity of natural waxes.