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What Causes Candle Glass to Break?

May. 12, 2023

Candles are a popular way to add warmth and ambiance to a room. They come in a variety of shapes, sizes, and scents, and are often placed in decorative glass containers. However, sometimes these glass containers can break, which can be a safety hazard and result in a messy cleanup. In this article, we will explore the common causes of candle glass breakage and how to prevent it.

 

Heat

 

One of the most common reasons for candle glass breakage is due to the heat generated by the candle flame. The glass container can become too hot, causing it to crack or shatter. This is especially true for thinner or lower-quality glass containers.

 

To prevent this, it is important to choose a glass container that is specifically designed to hold a candle. These containers are typically made of thicker glass and are designed to withstand the heat generated by the candle flame. Additionally, it is essential to ensure that the candle is placed on a heat-resistant surface and away from flammable materials.

 

Tealight glass candle holder

 

Thermal Shock

 

Another common reason for candle glass breakage is thermal shock. This occurs when the glass container is exposed to sudden temperature changes, such as from a draft or air conditioning. The rapid change in temperature can cause the glass to expand and contract rapidly, leading to cracks or breakage.

 

To prevent this, it is important to place candles away from drafts or air conditioning vents. Additionally, it is best to allow the candle to cool down completely before moving it or exposing it to a different temperature environment.

 

Overfilled Wax

 

Overfilled wax is another common cause of candle glass breakage. When a candle is overfilled with wax, the heat generated by the candle flame can cause the wax to expand and push against the sides of the glass container. This can lead to cracks or breakage.

 

To prevent this, it is essential to follow the manufacturer's instructions when it comes to candle wax levels. Overfilling the candle can also cause the flame to become too high, which can be dangerous and increase the risk of the glass container breaking.

 

Tealight glass candle holder

 

Poor Quality Glass

 

The quality of the glass container can also play a significant role in candle glass breakage. Thin or low-quality glass is more likely to crack or shatter when exposed to the heat generated by the candle flame. Additionally, glass containers that have flaws or defects, such as air bubbles, can be more prone to breakage.

 

To prevent this, it is important to choose a glass container that is made of high-quality glass and is specifically designed to hold a candle. It is also essential to inspect the glass container for any defects or flaws before using it with a candle.

 

Conclusion

 

In conclusion, candle glass breakage can be caused by several factors, including heat, thermal shock, overfilled wax, and poor-quality glass. To prevent candle glass breakage, it is essential to choose a high-quality glass container that is designed to hold a candle, follow the manufacturer's instructions when it comes to wax levels, and place candles away from drafts or air conditioning vents. Additionally, it is important to inspect the glass container for any defects or flaws before using it with a candle. By following these guidelines, you can enjoy the warmth and ambiance of candles without the risk of glass breakage. We are a glass candle holder supplier. If you are interested in our products, please contact us now!

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