The ancient Greeks pioneered new methods of viticulture and wine production which they shared with early winemaking communities in what are now France, Italy, Austria and Russia, as well as others through trade and colonization. Along the way they markedly influenced the ancient European winemaking cultures of the Celts, Etruscans, Scythians and eventually the Romans.
In the Mycenaean period wine took on greater cultural, religious and economic importance. Records saved on Linear B include details of wine, vineyards and wine merchants, as well as early allusion to Dionysus, the Greek god of wine. Early remnants of amphorae show that the Mycenaeans actively traded wine throughout the ancient world in places like Cyprus, Egypt, Palestine, Sicily and southern Italy.
One of the earliest known wine presses was discovered in Palekastro in Crete, and it is from Crete that the Mycenaeans are believed to have spread viticulture to other islands of the Aegean Sea and quite possibly to mainland Greece.
Greek coins from classical times, often imprinted with grape cluster designs, vines and wine cups, bear witness to the importance of wine to the Ancient Greek economy. With every major trading partner, from the Crimea, Egypt, Scythia, Etruria and beyond, the Greeks traded their knowledge of viticulture and winemaking, as well the fruits of their own production. Millions of pieces of amphorae, bearing the unique seals of various city states and Aegean Islands have been uncovered by archaeologists, showing the scope of Greek influence. A shipwreck uncovered off the coast of southern France included nearly 10,000 amphorae containing nearly 300,000 liters (over 79,000 gallons) of Greek wine, presumably destined for trade up the Rhône and Saône rivers to Gaul. It is estimated that the Greeks shipped nearly 10 million liters of wine into Gaul each year through Massalia. In 1929, the discovery of the Vix Grave near Burgundy included several artifacts which demonstrated the strong ties between Greek wine traders and local Celtic villagers. The most notable of these was a large Greek-made krater, designed to hold over 1000 liters of wine.
The Greeks practiced an early form of pigeage when it came to crushing their grapes. Wicker baskets filled with grapes were placed inside wooden or earthenware vats with a rope or plank above. Vineyard workers would hold onto the rope for balance and crush the grapes below with their feet. Sometimes this would be done to the accompaniment of another worker playing the flute in a festive manner. After crushing, the grapes would be placed in large pithoi jars where fermentation took place. The writings of Hesiod and Homer's Odyssey includes some of the earliest mentioning of straw wine production, laying freshly harvested grapes out on mats to dry into almost raisins before pressing. A Lesbian wine known as Protropon was one of the first known wines made exclusively from "free run" juice, taken only from grape clusters pressed by virtue of their own weight. Other Greek innovations include deliberately harvesting unripe grapes to produce a more acidic wine for blending. The boiling of grape must was discovered as another means of adding sweetness to the wine. The Greeks believed wine could also be improved by including additives like resin, herbs, spice, seawater, brine, oil and perfume. Retsina, Mulled wine and Vermouth are modern examples of this practice.
The most common style of wine in Ancient Greece was sweet and very aromatic, though dryer wines were also produced. Wine color ranged from dark, inky black to tawny to white. Oxidation was a common wine fault and many wines did not last beyond the next vintage. Wines that were stored well and aged were highly prized, with Hermippus describing the best mature wines having a bouquet of 'violets, roses and hyacinth'. Comedic poets would note that Greek women liked "old wine but young men". The wine was almost always diluted, usually with water or snow when the wine was to be served cold. The Greeks believed that only barbarians drank unmixed or undiluted wine and that the Spartan king Cleomenes I was once driven insane after drinking wine this way.
In addition to its presence as a trade commodity, wine also served important religious, social and medical roles in Greek society. The cult of Dionysus was very active, if not mysterious, and was immortalized in the work of Euripides's play The Bacchae. Several festivals were held throughout the year in honor of the God of wine. Anthesteria was held in February and marked the opening of the wine jars from that previous fall's harvest. The festival included a procession through Athens carrying wine jars and wine drinking contests. The Dionysia included theatrical performances of both comedies and tragedies in honor of the God of wine. Wine was a frequent component at the symposium which sometimes included play of Kottabos, which involved flinging the lees from an empty wine cup towards a target.
The medical use of wine was frequently studied by the Greeks. Hippocrates did extensive research on the topic. He used wine as a cure for fevers, convalescence and as a antiseptic. Hippocrates also studied the effect of wine on his patient's stool. Various types of wine were prescribed by Greek doctors for use as an analgesic, diuretic, tonic and digestive aid. The Greeks were also aware of some negative health affects, especially of consuming wine beyond moderation. Athenaeus made frequent mention of wine induced hangover and various remedies for it. The poet Eubulus noted that three bowls (kylix) were the ideal amount of wine to consume. The number of three bowls for moderation is a common theme throughout Greek writing; today the standard 750 mL wine bottle contains roughly the amount of three glasses for two people. In his circa 375 BC play Semele or Dionysus, Eubulus has Dionysus say:
Three bowls do I mix for the temperate: one to health, which they empty first, the second to love and pleasure, the third to sleep. When this bowl is drunk up, wise guests go home. The fourth bowl is ours no longer, but belongs to violence; the fifth to uproar, the sixth to drunken revel, the seventh to black eyes, the eight is the policeman's, the ninth belong to biliousness, and the tenth to madness and hurling the furniture.