The decaffeination of the coffee beans

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In 1820, a German chemist called Friedlieb Ferdinand Runge, discovered how to extract the caffeine from the coffee beans. Then, in 1905, the German Ludwig Roselius invented the first process for decaffeinating coffee. His method used benzene, a highly flammable liquid that nowadays is been replaced with non-toxic solvent. Is it safe to drink decaf coffee? The decaffeination process usually removes 97 to 99% percent of caffeine from the beans. When roasted, the beans lost any chemical residual (they are volatile compound) that still could be inside. About the Process … Read more