great! now, has anybody found apps to approximate caffeine contents from bean, roast and prep? this could be a basis for computation: How Much Caffeine in Cof

great! now, has anybody found apps to approximate caffeine contents from bean, roast and prep? this could be a basis for computation: How Much Caffeine in Coffee Cup? Effects of Processing Operations, Extraction Methods and Variables Carla Severini, Antonio Derossi, Ilde Ricci, Anna Giuseppina Fiore and Rossella Caporizzi Reviewed: 05 April 2017 Published: 21 June 2017 DOI: 10.5772/intechopen.69002 open access: https://www.intechopen.com/chapters/55623 https://www.intechopen.com/chapters/55623