How do basket sieves, strainers, and filters work?

In the context of basketry, sieves, strainers, and filters function through the use of openwork, which is a permeable structure created with a mesh of varying sizes. These utensils allow for the separation of materials based on their physical dimensions, enabling the passage of liquids or smaller particles while retaining larger solids.1

The effectiveness of these tools relies on the flexibility and precision of the weaving techniques employed. For example, in some cultures, these principles are applied to complex tasks such as food processing. A notable application is found among Amazonian Indians, who use long, cylindrical basketwork to extract toxic juices from manioc pulp. In this process, the basket is elongated through ballasting, which compresses the pulp inside to force out the liquid.1

While traditional basketry uses woven mesh to achieve these results, modern industrial applications, such as basket centrifuges, utilize similar principles by employing perforated walls and fine mesh screens to filter or clarify substances through centrifugal force.2