The venting pouch, innovated steamed bag, can be reheated by microware without cutting or punching the bag. It is the self-steamed bag which can self-release the air inside during reheating in microwave. In the microwave, it will swell slowly and then shrinking down as the steaming sound comes out and ending up with the end of the sound which means the Bun is ready to serve with self-dough, good texture and delicious taste as it coming out from the small steamer.
