Method and device for a polyester sterilization process

A package for orienting and cooling a polyester during a polyester sterilization process, the package comprising:

• a plurality of packets each containing polyester granules;
• and
• a housing defining a receptacle for receiving the plurality of packets and further defining a top region disposed above the receptacle, a bottom region disposed below the receptacle generally opposite the top region, and a plurality of sides disposed around the receptacle between the top region and the bottom region, the housing including
• at least one divider disposed between adjacent packets for separating the packets, and
• a compartment disposed in at least one of the plurality of sides, the compartment receiving a coolant, wherein the coolant is not disposed directly above the receptacle and is not disposed directly below the receptacle such that the receptacle can be irradiated from top to bottom or bottom to top without radiation passing through the coolant.