It might say fill with sand, but I never got any directions. I got it after a show, already built, out of the box. When not in use I take the center ring off, put the lid on the bowl, then put the ring back on top. Not recomended because the ring looks really rusty now. I should put it away when not in use so it will last longer. The smoke can blow out from under the top, but any open fire will have some smoke. We use seasoned hardwood so there is very little smoke and lots of heat. Hope that helps.