Edible oil specifications

Three oil sources, distinct specifications

This collection covers human-edible safflower, sesame and soybean oils. The oil name identifies its source, but it does not define a single uniform specification. Seed variety, extraction and refining affect the product, so buyers should state the exact oil type and form they require.

Safflower oil is not automatically high-oleic. High-oleic safflower is a distinct type, defined by a minimum of 70% oleic acid as a share of total fatty acids. When that distinction matters to a formulation, request the fatty-acid profile rather than relying on the general oil name.

Processing terms describe different forms

Virgin oils are mechanically obtained, with heat permitted and limited purification steps allowed. Cold-pressed oils are mechanically obtained without heat. These terms describe processing; they do not, on their own, establish every quality attribute or prove suitability for a particular recipe.

Soybean oil may also be described by processing stage, such as crude degummed or fully refined. Limits written for one soybean-oil contract specification should not be treated as universal limits for soybean oil—or applied to safflower and sesame oils.

Make the specification match the use

For bulk purchasing, define the intended use and required form, then set acceptance criteria for the attributes that matter. Depending on the application, these can include fatty-acid profile, free fatty acids, peroxide value, moisture or volatile matter, insoluble impurities, color, odor and flavor. There is no single set of limits that applies to all three oils.

Request a lot-specific certificate of analysis (COA) that states results, units, test methods and sampling basis. Compare it with the written specification, and confirm any required identity, sensory or contaminant criteria before acceptance. Do not infer frying performance or shelf life from the oil name alone.

Common questions.