SA Grain Quality

Annual Crop Quality Report

Annual Crop Quality Report

The crop quality surveys of maize, wheat, sunflower and soybean are performed annually by the Southern African Grain Laboratory (SAGL).

South Africa Crop Quality Report

The goal of this crop quality survey is to accumulate quality data of the commercial crops on a national level. This valuable data reveal general tendencies, highlight quality differences in the commercial crops produced in various local production regions and provide important information on the quality of commercial commodities intended for export. This detailed database contains information collected over several seasons.  
During the harvesting season, a representative sample of each delivery is taken at the various silos according to the prescribed grading regulations. A sub-sample of each of these grading samples is collected in a container according to grade and class per bin at each silo. A composite sample is taken from the container and divided.  This sub-sample is sent to SAGL.
For the purposes of this survey, South Africa is divided into 36 grain production regions that are not linked to the nine provinces. Various grain storage and handling companies are represented by the different collection depots (silos/bunkers/bags) in a particular production region.
To determine total production figures for each region in the annual crop quality survey, the National Crop Estimates Committee (CEC) estimates are used as a basis for the calculations, as well as the actual deliveries provided by the South African Grain Information Services (SAGIS).

The composite sub-samples thus proportionally represent every year’s crop in each production region.

SAGL was established in 1997 on request of the Grain Industry. It is an ISO 17025 accredited testing laboratory and participates in one national and twelve international proficiency testing schemes as part of their ongoing quality assurance procedures to demonstrate technical competency and international comparability.