Starlight coconut natural coals

I had one of these explode when i dropped it into the ash tray to get the ash off. It was my first time using starlights, but i have done this same proccess hundreds of times with diffrent brands and have watched people do it with nothing even close to it. It litterally looked like a firework went off in my tray. I was loving them until that happened, but now i am a little uneasy about them