The spices are first cold-pressed using rollers – crushing them in a non-heat generating manner ensures that the vibrant flavours are preserved. The crushed spices are then passed through an extraction vessel where the ethyl acetate (the solvent) is percolated in order to obtain the maximum volume of spice extract. The extracts are passed through a de-solventiser, where the solvent is removed using vacuum suction so as not to adversely affect the flavours. All that remains at this stage is the highly-concentrated oleoresin (oil + resin). Based on years of in-house research, we have developed the optimum concentration of Spice Drops®. Accordingly, the oleoresin is mixed with emulsifier polysorbate 80 to yield the final product in the desired ratio suitable for culinary use.