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Fistiki Aeginis

The pistachio, a member of the cashew family, is a small tree originating from Central Asia and the Middle East, which produces seeds widely consumed as food.

Photo by: Stan Shebs, Pistacio vera Kerman 2, CC BY-SA 3.0

Pistacia vera often is confused with other species in the genus Pistacia that are also known as pistachio. These other species can be distinguished by their geographic distributions (in the wild) and their seeds which are much smaller and have a soft shell. The trees are planted in orchards, and take approximately seven to ten years to reach significant production.

Production is alternate-bearing or biennial-bearing, meaning the harvest is heavier in alternate years. Peak production is reached around 20 years. Trees are usually pruned to size to make the harvest easier. One male tree produces enough pollen for eight to 12 drupe-bearing females. Harvesting in the United States and in Greece is often accomplished using equipment to shake the drupes off the tree. After hulling and drying, pistachios are sorted according to open-mouth and closed-mouth shells. Sun-drying has been found to be the best method of drying, then they are roasted or processed by special machines to produce pistachio kernels. In Greece, the cultivated type of pistachios has an almost-white shell, sweet taste, a red-green kernel and a closed-mouth shell relative to the 'Kerman' variety. Most of the production in Greece comes from the island of Aegina, the region of Thessaly-Almyros and the regional units of West Attica, Corinthia and Phthiotida. Greek production is first in Europe and 6th in the world (9.500 tn annualy).


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