The herb Centella asiatica is a possess memory enhancing effect , anti-inflammatory, wound healing , anticancer and antioxidant properties.therefore we suggested that the plant extract might possibly improve positive emotion such as alertness and calmness, which in turn improve attention and finally improveworking memory. Recently, Centella asiatica products are widely available in market as cognitive booster.C. asiatica herbal tea obtained from the market is prepared by simple drying .However, tea is known to contain high caffeineconcentration .To avoid the intake of caffeine from tea mixed with C. asiatica herbal tea, fermentation of only C. asiatica leaves may be an alternative method andthe process is believed to enhance the quality of herbal tea interms of colour, flavour and taste. methods for juice processing such as ultra-high-pressure processing(HPP) represent highly promising technologies to supersede the traditional thermal processes. . This method is capable of maintaining freshness and traditional thermal processes.