Yes, you need to wrap it in your bag and take it out when you go through security. But you can't get on the plane unless the smell affects the surrounding environment, such as durian, a pungent fruit. But the number of belts should be controlled. Consignment? ! Will it break? I suggest you take it with you. The consignment may be broken or crushed. After boarding the plane, if you need to refrigerate, ask the flight attendant for ice cubes, and the flight attendant will provide them, but wrap them in plastic bags to prevent the ice cubes from flowing out after melting and affecting the equipment on board.