Mortar grinders are traditional laboratory instruments used for grinding and mixing a wide variety of materials, including solids, powders, and pastes. These mills consist of a mortar, a bowl-like container, and a pestle, which is used to crush and grind samples into finer particles. The design allows for manual or motorised operation, providing flexibility depending on the application. Mortar grinders are particularly effective for preparing samples in pharmaceuticals, food science, and material analysis, where a homogenous mixture is essential. They can handle materials of different hardness, making them suitable for both soft and hard substances. By enabling precise control over the grinding process, mortar grinders contribute to achieving desired particle sizes and uniformity in sample preparation.