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Acidless oranges are an early-season natural product with exceptionally low degrees of corrosive. In the United States, they are also known as “sweet oranges,” and similar names are used in other countries: They are referred to as douce in France, sucrena in Spain, dolce or maltese in Italy, meski in North Africa and the Near East (where they are especially popular), and şeker portakal (“sugar orange”) in Turkey.

Because they lack the acid that prevents orange juice from spoiling in other groups, they are generally unsuitable for processing as juice, so they are mostly consumed. They remain profitable in areas of local consumption, but they are unsuitable for export to major population centers in Europe, Asia, or the United States due to their rapid spoilage.

A number of hybrids based on sweet oranges have also emerged, most notably the grapefruit, which originated from a backcross between sweet orange and pomelo. The orangelo was then produced by a spontaneous backcross between grapefruit and sweet orange.

A group of fruits that are collectively referred to as tangors and include the clementine and Murcott are the result of spontaneous and engineered backcrosses between the sweet orange and mandarin oranges, also known as tangerines. Additionally, more intricate crosses have been produced. The Ambersweet orange is actually a complicated hybrid of sweet orange and (Orlando tangelo x clementine) that is legal in the United States to be used in orange juice.