The white, juicy lining of this plant makes a lot of steam, but it can also cause a bitter taste, so tile a ves 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 a ves. More hot rocks are spread over the bundles of food, then more tile a ves, a layer of wet sacks, and a canvas covering. Dirt is shoveled in to the hole and patted down smoothly.