This feature enables the mixer grinder to retain the nutritional content and authentic taste of the ingredients regardless of the speed of mixing/grounding. The claim of Nutri-Pro is based on a test conducted on 6 ingredients i.e., rice, black gram, peanut, turmeric, tomato and papaya for higher nutrition retention.No stain, no fuss. Makes it easy for you to clean after every use A special coating that prevents growth of bacteria and viruses