Homogenizing samples, the laboratory paddle blenders rapidly prepare working material without dilutents for clinical and micobiological analyses, Blenders are designed to crush wet materials such as foods - fruits, vegetables, plant matter and organic matter.Laboratory blenders are used to mix, purée, or emulsify a substance. Styles include standard benchtop, mechanical immersion, and paddle varieties, and ultrasonic homogenizers. Standard blenders have a rotating metal blade that sits above an electric motor.