Openwork unifies the boundary between interior and exterior in a vessel form. This allows for a sense of inherence of the object within its environment. These pieces have a continuity between external and internal that allows for the passage of light, water and air through the walls of the piece.
Infusion is a process that relies on the openwork of the basket to keep tea materials separate from the water in which they are steeping, while still allowing for the strongest permeation of the water into the tea materials. In some of these teapots and pitchers, the infusing basket hangs down from the lid of the pot into the hot water. When through infusing, it can be rested in the accompanying stand.