Citrus existed 20 million years ago and its origin is in Southeast Asia. Specifically in China, Indochina and India. Hence comes the name, color of the dress worn by Chinese mandarins. Since then they have spread throughout the world and have evolved in very different ways, leaving many varieties. He extended thanks to the wars: Charlemagne, the Crusades, the discovery of America ... In the eighteenth century came to Spain, one of the top producers and consumers. The mandarins are of the family Rutaceae, the gender of the subgenus Citrus and aurantioideas. Tangerines are the most consumed citrus throughout the world. They are grown in tropical and subtropical climates, since they do not tolerate low temperatures. It is proven that the consumption of citrus fruits like oranges, tangerines, grapefruits ... They primarily protect against colds, because of his great contribution in vitamin C. and have other powerful benefits The main producers are tangerines with: Brazil, USA, China, Mexico, Spain, India, Iran, Italy and Argentina. In Spain, the top producer is the Valencia region, followed by Andalusia, Murcia, Catalonia and bearings.