Oxygen absorbers are added to air-tight packaging to help remove or decrease the available oxygen in the package. They are used to help maintain product safety and extend shelf life. There are many types of oxygen absorbers available to cover a wide array of applications. The components of an oxygen absorber can vary greatly depending on what it is being used for, the water activity of the product being preserved, and many other factors. Often the oxygen absorber or scavenger is enclosed in a porous sachet or packet, but it can also be part of packaging films and structures. For most products, a mixture of iron powder, sodium, and activated carbon   (charcoal) has proven here  quite effective.here u get knowledge about kunwar international