Cape wine producer ditches screwcaps in favour of cork
South Africa’s Klein Constantia winery has reverted to cork closures for its flagship white wine following concerns that screwcaps were affecting quality.
The reserve Perdeblokke Sauvignon Blanc risks developing reductive characteristics when sealed with screwcaps, according to head winemaker Adam Mason.
The wine spends almost 10 months on fairly heavy lees before bottling and another 10 months in bottle before release.
“With this style of maturation there is a higher risk of developing sulphide characters, which in my opinion is exacerbated even further under screwcap,” Mason said.
“Using cork as a closure I have not experienced this phenomenon.
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