Groundnut Kernels

Shipped in bags. The size and colour of groundnut kernels vary according to the country of origin. The main origins of supply are U.S.A., China and Argentina. The colour varies from a pale buff to a deep red or reddish brown, but all kernels in good condition have a bright appearance. Decortication, which is done by machinery, frequently results in a percentage of split kernels.
Kernels are subject to deterioration if shipped in a wet condition or with a high moisture content and, apart from mould or mildew, which may appear externally, the kernels are liable to heat internally. Kernels which have been stored for any length of time before shipment are subject to weevil infestation, evidenced by a thin layer of dust on the outside of the kernels. For crushing purposes this infestation, unless really extensive, is not a serious matter.
Heated kernels affect the quality of the oil, and the resultant high acidity can be a serious matter, as it necessitates extra refining.

Groundnut kernels require clean stowage. Cases are known where complete parcels were condemned for human consumption in connection with a fusty taste. This was as a result of stowage together with sawn timber and/or coconuts.
Attention should be paid to load quality, e.g. age, water content , mould and condition. Ventilation should occur but attention should be paid to the isothermal balance of moisture content, temperature and relative humidity.