The research on soya bean extrusion process with added wheat or corn showed its significant impact on the
extruded products. Extrusion process parameters varied depending on the type of the mixture, which is the outcome
of the chemical composition of the input materials. Both the compression force and cutting strength of the extrudates
depend on the composition of the mixture. Addition of corn caused increased resistance to compression and raised
the cutting strength. The wheat-soya bean mixture had a high expansion ratio, but at the same time low kinetic
strength, which may lead to fast crumbling of the product.