If you’ve ever had a candle glass overheat and crack or shatter, you know how dangerous it can be.

You also know that it’s not something you want to experience again. Fortunately, there are several simple steps that you can take to avoid this problem. In this blog post, we will discuss why candle glasses overheat and how to prevent it from happening. 

The Candle is Being Burned for Too Long 

The first step in avoiding overheating is to ensure that you are only burning your candle for the recommended amount of time — typically two to three hours at a time. Burning a candle for too long can result in a deep melt pool and cause the flame to be positioned lower in the jar, leading to intense heat buildup.  This can also occur if you frequently blow out your candles before they have had enough time to burn down properly.  To avoid this issue, make sure that your candles have sufficient burn time before extinguishing them and do not burn them longer than 3 hours at a time.  

The Candle Jar is on an Uneven Surface 

Another common cause of overheating is an uneven surface. When burning your candle on an uneven surface such as a carpet or pillow, the flame may become tilted or blocked off by unburned wax or other objects around it, causing an accumulation of heat which could lead to cracking or shattering of the glass jar. Make sure that when lighting your candles they are placed on even surfaces such as tables or countertops so that they remain upright throughout their use.  

Candle Jar Placement 

When lighting candles, make sure that you keep them away from any sources of air drafts like windows and ceiling fans as these can increase the intensity of the flame and cause more heat buildup around the jar itself. Additionally, make sure that your candle jars are placed at least 10 inches away from each other when lit; this will help reduce heat transfer between candles and prevent any potential accidents from occurring.  

These tips should help keep your glass jars cool while enjoying their beautiful glow!

Remember - never leave your burning candles unattended and always double check for proper placement prior to lighting them up! With just a few simple steps, you can enjoy safe candle burning while keeping heat buildup at bay!