When you’re building a campfire, you might be tempted to toss a few rocks into the flames for structure or aesthetics. While most rocks will withstand the heat without issue, some can be ticking time bombs due to their water content and structure. In this guide, we’ll show you how to select and use rocks that won’t turn your cozy campfire into a hazardous situation. Let’s keep those rock explosions at bay by avoiding rocks in our fire pit with high moisture content.<\/p>\n\n\n\n
Rocks can explode in a campfire because of rapid expansion due to trapped water inside the rock, or through uneven heating. Although virtually all rocks have some amount of water inside them, porous and more permeable rocks have more water and are thus more dangerous inside a fire.<\/strong><\/p>\n\n\n\n I had heard about this phenomenon, and I have personally see rocks pop inside a fire but not with a ton of force. I decided to do some research on this subject and find out how dangerous rocks in a fire really are. So, let’s talk about why you would want to use rocks in a fire, and which rocks are the safest to use. <\/p>\n\n\n