All are packaging material of choice for Steam sterilization with the exception of?

When evaluating the suitability of packaging materials for steam sterilization, it is essential to consider their ability to allow steam penetration while also maintaining a sterile barrier after the sterilization process.

All paper pouches are generally designed for moisture and air removal, making them effective for steam sterilization; however, they may not be suitable for all types of instruments, particularly those with complex geometries or lumens. In contrast, paper-plastic pouches, textile wraps, and non-woven wraps are specifically designed to enhance the efficiency of steam sterilization. For instance, paper-plastic pouches can offer better microbial barrier properties while allowing for adequate steam penetration, thereby ensuring that instruments are appropriately sterilized. Textiles and non-woven materials also allow for steam transmission and prevent contaminants from reaching the contents post-sterilization.

The choice of answer reflects an emphasis on understanding the limitations of all paper packaging in the context of steam sterilization, where durable materials that maintain strength under moisture are preferred.