Coffee Bag China intend to do our best service for all of the coffee user in packing problem around the world! We are one leading manufacturer and trading company Located in Xiamen, China. We take advantages to producing the flexiable packing from 2000 years. We study on the one way degassing valve coffee bag last for 3 years, recently, we buy the valve from SWISS and AMERICAN, so now, we take advantage to produce the one way degassing valve coffee bag to keep your coffee fresh!