80 water solvent mixture again with steeping for about fifteen hours at room temperature filtration yields a further charge of raw extract having a solids content of about 1 0 this raw extract is passed through the same ionic column as the first raw extract from the first solvent contact step so as to provide an additional volume of flavor extract the procedure according to example i is repeated several times but using smaller batch sizes in each case 100 grams of ground coca leaves are steeped for about fifteen hours in 750 ml of a solvent mixture as specified in table i below the results are as indicated in the table each line in table i designated by a letter represents a single sample and includes data for that sample both before and after ion exchange treatment in every case the raw extract includes either cocaine or ecgonine as determined by the bohm 39 s test whereas the flavor extract after ion exchange treatment has no detectable cocaine or ecgonine based on the bohm 39 s test table i__________________________________________________________________________ flavor extract after ion raw extract exchange treatment solids flavor in flavor insample solvent ph aroma cola base aroma cola base __________________________________________________________________________a 50 ethanol 6 65 3 0 good good good good 50 h sub 2 o cola cola cola colab same as a 4.