Extracts of plant material contain concentrated amounts of the aromatic, colouring or functional components of a raw material. They can be used as an ingredient in a wide variety of food and beverage applications to impart colour, add flavour, deliver a health claim, or provide other technical functions such as bittering or foaming. These are also widely used in flavour manufacturing. To extract oleoresins, you choose the desired raw spice, then it is cleaned, washed, dried and dehulled (if needed) and crushed. From there, the crushed spice goes into an extraction machine, then counter-current extraction to a solvent evaporating system and then you have a more portent, semi-solid version of your original spice.