Tiêu chuẩn IPC

–  IPC BP-2 and IPC WP-2 are grades of pepper. Which has been partially processed (i.e. has gone through some basic cleaning  processes like sieving and winnowing). – IPC BP-1 and IPC WP-1 are grades for pepper, which has been further processed (i.e. has gone through further cleaning processes including sieving, cycloning, destoning, washing and mechanical drying). […]