The best protection is to cover all body surfaces and should not be exposed. To use gloves and goggles, it is extremely important to protect your hands and eyes from damage. Do not directly touch dry ice with your hands. Use a chisel to chisel dry ice into small pieces. Take care to protect your eyes and prevent dry ice fragments from flying into your eyes. Use dry ice in a well-ventilated area. Store dry ice in an unsealed container. Quickly sublimate dry ice with hot water. You can put dry ice in a warm environment, or pour hot water on it until it sublimates and disappears. Use certified food grade dry ice. Avoid direct contact with dry ice and food. Dry ice will freeze any food it comes into direct contact with. If possible, avoid direct contact with dry ice. You need to wrap the newspaper with dry ice to make the newspaper an insulating layer, which can greatly extend the use time.