The Sifter Sieves are free from toxic lead and tin metals. Apart from this they are made from high grade material that is obtained from trusted suppliers. The edge of the wire mesh is moulded in a bio safe or silicon food grade rubber. This makes wire can be Sifter Sieves strong and long lasting Further the stretched to induce tautness and higher tensile load. They can give a better throughput, longer life and maintain uniform aperture size. They are easy to use, wash and maintain.