What is the characteristic of earthenware that affects its usability?

Earthenware is characterized by its porous nature, which makes it unsuitable for holding liquids without a protective finish. Therefore, it must be glazed to create a non-porous surface that can retain liquids effectively. The glaze also adds a decorative element and enhances the durability of the pottery, making it more suitable for practical use.

In contrast, earthenware does not have the fire-proof qualities of stoneware or porcelain, which can endure higher firing temperatures and be used in ovens. Additionally, earthenware is not designed for high-temperature tasks, such as cooking, in the same way that stoneware is. While it may have a texture suitable for certain arts and crafts applications, this characteristic isn’t a defining feature that improves its usability in the context of holding liquids. Therefore, glazing is essential for earthenware to make it functional for everyday use.