What are some unique winemaking techniques employed in Greece?

Greek wine production employs various ways for the winemakers to create unique wines. Such as skin contact, grape shive contact is popular in white wine production where grape shive is left poured in front of the juice to get some extra quality including flavour and texture. Alongside such processing, ancient tradition of grapes sun-drying, called "passito", is used to sweeten and intensify flavors becoming the base of rich and complex dessert wines as Vin Santo.
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