1.Let the cysts absorb water and expand
2.Dissolve cysts using oxidants such as sodium hypochlorite
3.Thoroughly clean and remove residual chemicals
4.Dehydrated and dried for easy storage and transportation.On this stage,normally factory just keep the moisture to 10%,But this moisture will not kill the Bacteria and viruses.What we supply is at least 7%moisture,clean and good corlor