Alissa Mattei is an organic chemist and she began her professional career in 1974. In 1992, she became a professional taste tester and panel leader. She has published many scientific articles and patents. Since 2006, she has been working as a consultant for numerous companies and producers’ associations, organizing tastings and scientific courses in Italy and in other countries (Russia, Hungary, Chile, Argentina, China). Nowadays, she is President of the Knoil Association which works to spread olive oil culture and is the AIFO (Italian Associatio of Olive Oil Mills) panel chair. She has also been a judge in various international competitions. She writes Tuscan recipes as well as recipes from other Italian regions.