Lab mixing and grinding create uniform samples for testing and evaluation. Homogenizers and blenders create uniform samples for accurate testing. Shakers vigorously mix samples to create reactions and ensure even suspension. Stirrers use magnetic stir bars to continuously stir liquids unattended. Hot plates warm and boil solutions in a controlled manner and keep contents at a stable temperature. Grinding mills break down solids into fine particles to make dissolution and sample preparation more uniform.