Microwave Steaming Bag Used as Microwave Steaming bag, fresh storage and frozen bag Microwave Steaming Bag  Advantages    *More convenient, faster than normal microwave bag     People can put microwave bag   directly into the oven instead of the container, to meet the   modern fast paced life.    *More nutritious, more delicious than normal microwave bag   Keep food nutrients, taste better. *Safer than normal microwave bag   Double track zipper design , good hermatic performance, automatic exhaust, to avoid the contents overflow.  *More functions:      The microwave bag can also be used as fresh storage and frozen bag, It can prevent odour penetration.