[header] How to identify plastic rice [title] Purchase plastic rice beads if you want a comparison. [step] Plastic rice beads are available online and at some art supply stores. They're used to cushion shipped cargo and for crafts projects. 
When you conduct your experiments, you could compare a sample of plastic rice with the rice you want to test. [substeps] Some people have seen videos of plastic rice beads being produced and assume that they're made just to be passed off as food.