Winemakers in northern Greece are diving into the unknown by plunging hundreds of bottles of their wine into the depths of a local river.
Far from the sea or any lakes, producers in the town of Naoussa are to age some of their wine in the cool running waters of the Arapitsa River.
As a band ceremoniously played traditional Greek songs, a crane lowered a large metal crate holding about 500 bottles of wine from off the riverbank.
About 22 makers of Xinomavro, a wine made from a dark-skinned grape variety, proudly watched, hoping the water cellar will broaden the varieties of the products.
“The bottles are placed at 12m depth, and we aim to keep them there for at least 12 years,” said George Fountoulis, president of the Vaeni Naoussa wine cooperative which represents half of the region’s wine production.
Tests are to be done on an annual basis to check how the process evolves, he added.
It is part of a trend in the past few years by winemakers to test the benefits of a deep soak — including in the ocean — on the wine aging process.
Some scientists say that one year underwater is equivalent to three years in a cellar. Naoussa’s vineyards are on the slopes of Mount Vermio and mostly produce Xinomavro, which roughly translates as acid black or sour black.
About 5,000 tonnes of Xinomavro wine are produced there annually. The wine is also exported to more than 45 countries.
“Naoussa is the city of wine, the Burgundy of Greece as we call it here,” Naoussa Mayor Nikolas Karanikolas said. “This is an experiment and we will wait to see how the identity of the wine will evolve in these conditions. Our winemakers are well organized, extrovert and always innovative.”
Oenologists do not know what the outcome will be, but are excited by the whole process.
“We know that oxygen is insoluble in water, the average temperature of which we estimate will be 16°C,” oenologist George Diamantakos said. “The hygienic condition of the water is excellent, and we want to see how the sun and the natural environment of the river will affect the wine.”
The Naoussa area mainly has small family wineries with limited production. In the past, nearly every house had its own vineyard.
“We call Xinomavro ‘the Barolo of the poor,’ but we are very proud of our products,” said Petros Karydas, referring to Italy’s sought-after wine.
Karydas runs a small vineyard that produces about 12,000 bottles of wine a year, some of which are exported to the UK and the US.
However, other challenges posed by the effects of a warming climate are more of a concern for wine industry professional Nana Chrysochoou than the results of the experiment.
The winery set up by her father produces the only white wine placed in the water cellar and is from a local grape variety that he revived in his vineyards.
“Year after year, we see climate change having an even greater negative impact on vineyards,” she said. “Especially this year, our plants went into a big shock due to the prolonged heatwave and drought. I do not know if the crop will last in 20 years’ time, if the same climatic conditions continue.”
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