1515.29.00.40 - Other (fully refined, washed, bleached or deodorized)

This category encompasses corn (maize) oil and its fractions that have undergone further refinement beyond a basic alkali or caustic wash. Specifically, it includes oils that have been fully refined, a process that typically involves treatments such as washing to remove free fatty acids, bleaching to remove color pigments, and deodorization to eliminate undesirable odors and flavors. These steps result in a highly purified oil suitable for a wide range of applications.

The key differentiator of this category, 1515.29.00.40, lies in the extent of processing. It is distinct from its sibling category, 1515.29.00.20, which covers once-refined corn oil. The "once-refined" category implies a less intensive process, usually limited to an alkali or caustic wash, without the subsequent bleaching or deodorization steps. Therefore, oils classified here are characterized by their significantly higher purity, clarity, and neutral organoleptic properties due to the complete refining process.

As this is a leaf node within the HTS classification system, there are no further subcategories. The distinction is solely based on the level of refinement applied to corn oil and its fractions. Classification under this heading is determined by the absence of further chemical modification and the presence of full refining treatments such as washing, bleaching, and deodorization.