Seedless grapes are 100% natural and occur as a result of non-development of the embryo in some varieties. They have been produced for centuries and were much appreciated by the Turkish emperors. The first varieties of seedless grapes arose spontaneously in the region of Mesopotamia, the most popular of which were known as “sultanas” or “sultaninas”.
This was a small calibre grape, and it was only in the 19th century that growers managed to produce a larger sized version (by pure cross-breeding of varieties) and increase its commercial value. Despite this, it was already being consumed dried in the form of raisins.