0402.91.10.00 - In airtight containers

This HTS category, 0402.91.10.00, specifically covers milk and cream, concentrated or containing added sugar or other sweetening matter, that are not in themselves sweetened but are packaged in airtight containers. This designation is crucial for imported goods falling under Chapter 4, focusing on dairy products. The key differentiator for this classification lies in the method of preservation and packaging; the product must be sealed in a manner that prevents air ingress, such as cans or vacuum-sealed pouches.

It is important to distinguish this category from its sibling, 0402.91.30.00, which is also for "Other" concentrated milk and cream not containing added sugar but is not specifically designated for products in airtight containers. Therefore, while both deal with unsweetened concentrated dairy, the defining characteristic for 0402.91.10.00 is the airtight packaging, which often implies a longer shelf life and specific product integrity requirements.

As this is a leaf node, there are no further subcategories. Classification within this code is determined by the combined criteria of the product being concentrated milk or cream, not containing added sugar, and being presented in an airtight container. This classification hinges on the physical presentation and containment method of the dairy product.