Durum Wheat and Bread Wheat for Buyers
Durum is typically a pasta wheat. Bread wheat is a different class. A surplus of one does not fill a contract for the other.
Wheat is not one ingredient. Durum is a hard, dense wheat used mainly for pasta and couscous, where the coarse endosperm and the protein behavior suit that food. Bread wheat, often called common wheat in trade, is the family milled for breads and many flours. A buyer who wrote durum and receives bread wheat has the wrong raw material, even if both trucks say wheat on the scale ticket. Protein testing, which matters inside each class, is explained at https://goodsandgrain.trade/wheat-protein-tests-for-millers. Class comes first. Protein does not repair a class error.
What the pasta mill is buying
Durum buyers care about the traits that survive into semolina: kernel hardness and vitreousness, color, protein in the range they set, and limits on sprout damage and admixture. Falling number can be part of that sprout conversation, described at https://goodsandgrain.trade/falling-number-wheat-test. A lot of soft or mealy kernels, or a blend that dilutes a durum identity, fails the purpose of the contract. The premium exists because the supply of suitable durum is its own market, not a corner of the bread-wheat pit.
Ask whether the spec is for durum as grain or for semolina. Those are different products, as seed and oil are different products in an oilseed crush.
What the bread mill is buying
Bread-wheat mills buy a class that fits their bakery: hard or soft, spring or winter, with a protein band and a falling-number minimum they name. They did not order pasta wheat. Durum dumped into a bread-wheat bin can be as wrong as the reverse. The damages are commercial and sometimes operational. Do not fix an overfilled durum bin by quietly adding it to the bread-wheat pile unless a buyer has agreed to that exact blend.
Test weight, damage, and moisture still apply inside both lanes. They are not the class.
Identity in the bin and on the page
Keep classes in separate bins. Mark the bin. Tell the truck driver the class out loud. The sampling mistakes that hide a mixed hopper are listed at https://goodsandgrain.trade/sampling-mistakes-that-skew-grades. A mixed hopper is how a pasta spec dies at destination after everyone at origin said the paper was fine.
On the invoice and the certificate, use the class name the contract uses. A generic word, wheat, is how a letter of credit and a mill start an argument that the grain itself did not need.
Prices that should not be averaged
Durum and bread wheat can rally on different news. A pasta buyer’s cover is not a flour mill’s cover. Comparing your durum bid with a neighbor’s bread-wheat bid, without converting class, is the elevator-comparison mistake in a sharper form. Compare nets inside one class, after the discounts that class uses. Bids that are not the same product are discussed at https://goodsandgrain.trade/mistakes-comparing-elevator-bids.
Freight and receiving hours still matter. A durum premium at a mill that will not take trucks this week is not this week’s cash.
Contract the class you can deliver
Name durum or name the bread-wheat class, attach the factor limits, and load only that grain. If weather damaged vitreousness or falling number, sell the grain you have into a buyer who priced that result. Do not promise pasta wheat from a bin you have not tested. This is a buying distinction, not seed advice.
Frequently asked questions
Can durum replace bread wheat if protein is high?
No. Class is the product. Protein is a factor inside a class, not a permission slip to switch classes.
Why is durum sometimes priced far from other wheat?
Because pasta demand and durum supply are their own balance. The bread-wheat market can be calm while durum is not, or the reverse.
What should the invoice say?
The class in the contract, not a generic wheat label. Match the certificate to that word.