4. Before the fully processed brown rice is packaged for shipping, it passes through another, more finely calibrated gravity table, which extracts any remaining tiny impurities. At every stage, small samples are pulled from the milling line for even closer inspection in an on-site laboratory. The process for milling white rice is virtually the same, with the addition of several steps after the final brown rice stage: an initial grating and scraping process, called a break, ruptures the grains' bran coating, causing much of it to fall away, along with the germ; a second break removes another portion of the bran; and a final break removes the rest. For polished white rice, a fourth break is added.