Aseptic packaging, using metal irrigation

Metal cans are one of the earliest packaging materials used in aseptic packaging. They are mainly divided into tinplate cans and cans. At present, the most advanced typical representative of the aseptic packaging of metal cans in the world is the US Dole Aseptic filling and irrigating system. The canister sterilization method used in the Dole system is dry heat sterilization, which uses high-temperature superheated steam to sterilize. When the empty can passes through the sterilization chamber on the conveyor chain, the superheated steam vehicle is sprayed up and down for 45 seconds, and the can temperature rises to 221 At -224°C, the lids were also sterilized using superheated steam at 287-316°C for 75-90s, these temperatures were sufficient to kill all the heat-resistant bacteria. The filling system is characterized by: all containers and equipment are used superheated steam sterilization, high degree of sterility; headspace inside the can have very little residual air, almost in a high vacuum state, product quality is safe and reliable.