The pressure cooker takes a long time to cook. Ajisen Lamian Noodles's pig cartilage was pressed by a pressure cooker. After the pressure cooker is inflated, just turn down the fire and let it out. Turn off the fire for 20 minutes. Pig brittle bone is the soft spot of pig, also called pig cartilage. Pig brittle bone, also known as crescent bone, refers to the half-moon soft tissue (alias "brittle bone") where the sandwich meat on the front leg of a small animal meets the fan-shaped bone.