Saranex liners comprise layered polyethylene, which is slightly permeable to oxygen, meaning a desirable ratio of oxygen comes in contact with the wine to allow slow, steady development while maintaining freshness.
These screwcap closures were proven to hold fruit flavours and aromas without significant reductive character compared to natural cork.
Jordan Ferrier, research winemaker for Constellation Wines US, presented the winery’s extensive study results at the 62nd annual American Society of Enology and Viticulture (ASEV) Conference in Monterey, California, the leading technical conference for grape producers, technicians and researchers in North America.
The study is the first conducted at a large-scale winery that compares multiple closure types sealed on a commercial bottling line under controlled conditions, with findings shared publicly.
“Until now, acceptable wine aging standards have been defined by the cork closure,” said The Hogue Cellars director of winemaking Coman Dinn. “However, this study shows that wines aged under the right screwcap closure over five years were better preserved, aged well and were deemed the highest quality.”
Source: Constellation Brands
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