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Why Does Wood Pop When Burning. Some will get stuck in the wood. Although your piece of wood may look and feel quite dry, it definitely has some moisture locked inside of it.
As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas. Trapped moisture can also cause wood to pop and crackle from the creation of steam. Hence, there will mostly be some moisture in the wood.
Some will get stuck in the wood. See answer (1) best answer. Once the gas pressure builds up it will create an energy burst with mini explosion.
Although your piece of wood may look and feel quite dry, it definitely has some moisture locked inside of it. Unlike wood, water doesn’t convert into heat when burned. As the wood burns the moisture is heated, and as the moisture is heated it expands and turns into gas.
Trapped moisture can also cause wood to pop and crackle from the creation of steam. As the gas escapes, the fire will emit an audible pop or crack. As the trapped moisture heats up, it will.
When the wood is burned, combustible gasses will be released. These air pockets fill narrow passages within the wooden log. The holes created by the insects will give the gasses an escape route.
This same principle rings true when burning wet or moist firewood. Gas is created by trapped moisture locked in small pockets within the wood. Firewood popping occurs when burning wood has a high moisture content.
