Vitam-R yeast extract has been produced by the traditional autolysis, self-made method since 1925. The yeast opens its cell walls using its own natural enzymes, at mild temperatures of 32°C. These indigestible cell walls are parted from the cell juice by centrifugal force. The cell juice is then reduced to a spreadable paste using a vitamin-saving vacuum. The method Essential do not use, called enzymatic hydrolysis, destroys the yeast cell (including its enzymes) with high temperatures, resulting in a ‘burnt’ aftertaste. The cell walls are opened by adding extrinsic enzymes and ribonucleic acid, then separated into inosine monophosphate and guanosine monophosphate by further enzymes.