We are offering retort pouchretort pouch : this pouch can be used in very high temperature. You can braize, steam the food with this pouch, or put pouch in micro-wave oven . 1. Material : pet / al / pa / rcpp or pet/pa/rcpp2. Type : three side seal , rear-middle seal, stand up ect. 3. Advantage : high barrier to moisture-vapor , oxygen , you can braize , steam the food with this pouch , and you also can put this pouch in micro-wave oven . 4.can be heat up to 121 or 135 degree and put in microwave oven.