Sodium bicarbonate is searched, bought and specified under several commercial labels: food grade, feed grade, baking grade, technical grade and industrial grade. That can create a costly shortcut in procurement: treating the grade name as a substitute for a real qualification process. It is not.
A buyer who searches for ammonium sulfate 24 + 0-0-21S is usually not looking for a chemistry lesson. The decision is commercial and operational: can the supplier deliver the declared nitrogen and sulfur, in the right physical form, with documents that match the shipment, and in packaging that works through the buyer's logistics and blending process?
In dairy nutrition, sodium bicarbonate is often discussed as a rumen buffer. That phrase is useful, but incomplete. The relevant decision is not whether a bag of sodium bicarbonate is chemically capable of reacting with acid. The real decision is whether a particular feed-grade ingredient fits the forage, fermentable-carbohydrate profile, animal group, feeding pattern and feed-mill process of a specific dairy programme.
For a feed manufacturer or importer, a Certificate of Analysis (COA) is often the first technical document requested from a sodium bicarbonate supplier. It should be important, but it should not be treated as a complete supplier approval. A COA is a batch-specific statement of analysed characteristics against a stated specification.