Soybeans

The soybean commodity is the cleaned, dry seed. Unlike cereals, which are dominated by a milling pathway, soybeans are traded primarily as a crushing raw material valued for what can be separated out of them. A smaller stream is traded for direct food manufacture — soyfoods such as tofu, soy milk, and fermented products — and these lots are commonly bought on tighter, buyer-specific descriptions than commodity crushing beans.

Crushing separates the bean into an oil fraction and a protein-rich solid fraction. At concept level the sequence is cleaning, cracking, dehulling, conditioning, flaking, and then oil separation, after which the de-oiled solids are processed into meal. Hulls removed before oil separation leave as a distinct, lower-value stream.

Soybean meal

The de-oiled protein fraction, the principal protein ingredient in compound feeds worldwide. A co-product, not a residue.

Soybean oil

The extracted oil, used in food and in industrial applications including biodiesel. Also a co-product.

Soybean hulls

The seed coat removed during dehulling — a genuine by-product: real feed value, but residual and lower-value relative to meal and oil.

Because meal and oil arise from the same pass, neither can be produced without the other. A crusher’s margin depends on the combined value of both streams against the cost of the beans, which is why soybean markets are quoted alongside meal and oil markets rather than in isolation.

Soybean lots are described by moisture, foreign material, splits, and damaged beans, with heat damage treated separately because it signals mishandling in drying or storage. Oil and protein content matter greatly to a crusher and are often addressed by contract or premium schedule rather than by the base grade. Green, mouldy, or badly weathered beans reduce both grade and processing value.

Splits deserve particular attention: the soybean has a large embryo and a thin seed coat, so beans that are handled roughly or dried too hard break apart. Split beans expose oil-bearing tissue, which accelerates deterioration in store and increases free fatty acid development. Grade standards are national and versioned, and meeting a grade is a commercial description — not a food-safety clearance or a guarantee of crush performance.

Soybeans are hygroscopic and respire in store; held too moist or too warm they heat, mould, and lose processing quality. They are also unusually sensitive to over-drying and rough handling, both of which raise the proportion of splits and cracked seed coats. Safe holding therefore depends on drying to a moisture appropriate to the intended storage period and climate, cooling the bulk, and monitoring it — with the applicable national storage guidance setting the figures.

Movement is in bulk, and lot identity matters: crushing beans, food-grade beans, and seed are segregated because their buyers are different and their descriptions are not interchangeable.