Often Shippers load different grain cargoes in the same cargo hold and sometimes for multiple destinations. Depending on the possible stowage plan and the number of different grades, artificial separations need to be placed to avoid the different grades or commodities to be commingled. It is normally done with plastic sheets/trampolines and plywood. It is labor intense work, which must be done to Master’s satisfaction. Most grain terminals-ports do have specialized companies that provide this kind of service.
AEC loaded on their about 50000 mt of Corn, Wheat, Soybeans on the charter vessel MV Inca Queen (2014 built, 52199 MT DWAT) from Mississippi River where Hold No.5 had one separation to separate wheat from corn. The cargo was for three ports in Colombia.