... % purityMesh Size: 30,40, 50, 60, 80, 120 mesh etc.Storage: Preserve in tight containers at controlled room temperaturePacking: 454 g/bag, 20 bags/carton ... , 9.08 kg/carton. Customized package is available.Shelf time: 18 months.Store in cool and dry ... place; keep out of direct sunlight. 99% monosodium glutamate (MSG) 20,30,40,80 mesh