In the tablet pressing process, the appropriate amount of active ingredient must be in each tablet.  Hence, all the ingredients should be well mixed. If a sufficiently homogenous mix of the components cannot be obtained with simple blending processes, the ingredients must be granulated prior to compression to assure an even distribution of the active compound in the final tablet. Two basic techniques are used to granulate powders for compression into tablets: wet granulation and dry granulation.  Powders that can be mixed well do not require granulation and can be compressed into tablets through direct compression ("DC"). Direct compression is desirable as it is quicker. There is less processing, equipment, labor, and energy consumption. However, DC is difficult when a formulation has a high content of poorly compressible active ingredients.