Spin speed refers to how many times the washing machine drum rotates per minute. A faster spin speed will remove more water from the clothes, meaning they will dry faster. However, choosing the appropriate spin speed depends on the type of clothes you wash each time. For delicate clothes such as woolens and delicates, prefer lower speeds (800-1000rpm), while for everyday clothes, such as cotton, synthetic and mixed fabrics, you can choose 1000-1200rpm. For heavier fabrics such as jeans, towels and sheets you can increase the speed to 1200-1400rpm.