Technically Kujako is the only person correct so far because of what an explosion actually is but... yeah Nothing explodes without some kind of container to build up pressure, you just get a huge roaring fire. Hell, Pig Manure or compost would do it. Got a little compost bin in your kitchen to put food scraps in which you'll then go throw in the garden after a while? Our current one has 2 little slats cut into the top with foam underneath. Our old one had no such thing and a tight fitting plastic lid. Due to the gas released in decomposition, in the middle of the night you'd hear a popping noise and in the morning find the lid had burst off. Tada, explosion - not a fiery one but is actually