A review: starch-based composite foams Described temperature range and screw speed of Starch-based foam by extrusion used are frequently in temperature range 120-170 °c and Screw speed 70-400 rpm. For example of different types of starch with various screw speed Cassava starch : 70 rpm Potato starch : 200 rpm Wheat flour : 400 rpm. Research has selected potato starch to produce loose fill foam then use screw speed at 200 rpm . The other screw speed will lead to further studies.