Work out oil extraction yield instantly with clear inputs, formula shown and shareable results.
Oil recovered is seed weight x oil content x extraction efficiency. Screw expellers recover 80-88% of the oil present and leave 6-10% residual oil in the cake; solvent extraction reaches 96-99% but needs a hexane plant. The cake is the balance of the seed weight and carries real feed value.
Oil recovery
Oil in seed = seed x oil content %; oil recovered = oil in seed x extraction efficiency
Cake
Cake = seed weight - oil recovered
Mechanical pressing cannot rupture every cell. The 6-10% residual oil is why solvent extraction plants buy expeller cake to extract further.
It lifts recovery a few points but raises energy cost and can darken the oil. Compare the extra oil value against the additional energy and throughput loss.