The white, juicy lining of this plant makes a lot of steam, but it can also cause a bitter taste, so tile are layered over it. Finally, the pig or turkey is placed in the imu ,along with sweet potatoes, pineapple, plantain, vegetables, and even fresh fish—all wrapped in tile. More hot rocks are spread over the bundles of food, then more tile, a layer of wet sacks, and a canvas covering. Dirt is shoveled in to the hole and pat down smoothly.