Rinse and sort beans. Transfer to a 6-qt. electric pressure cooker. Add two teaspoons salt and 7 cups water. Lock lid; close pressure-release valve. Adjust to high pressure-cook on high for 2 minutes. Let pressure release naturally for 20 minutes; quick release any remaining pressure. Press cancel. Drain beans; discard liquid. Return beans to pressure-cooker. Add remaining water, salt and lard. Lock lid; close pressure-release valve. Adjust to high pressure-cook on high for 25 minutes. Allow pressure to naturally release for 10 minutes and then quick-release any remaining pressure; do not drain. Press cancel. If desired, mash or puree beans in broth and sprinkle with queso fresco and cilantro.