Case Study: amaea Molecular Filtration
November 2025
When Sonoma Bespoke purchased a premium Napa Valley Cabernet Sauvignon, winemaker, Joe Uhr was tasked with improving the pyrazine-impacted wine to make it more approachable and attractive for sale.

Above: Joe Uhr, Winemaker at Sonoma Bespoke with VA Filtration USA’s amaea molecularly imprinted polymer filtration system.
When Sonoma Bespoke purchased a premium Napa Valley Cabernet Sauvignon, winemaker, Joe Uhr was tasked with improving the pyrazine-impacted wine to make it more approachable and attractive for sale.
Where many would have turned to traditional masking techniques, Uhr chose to trial amaea RMx – a new, highly selective pyrazine remediation technology delivered by the region’s leading wine filtration service provider, VA Filtration, located in Napa, California. The innovation successfully reduced the unwanted green characters, allowing the hallmark, fruit-forward descriptors Napa Valley Cabernet Sauvignons are renown for to shine. The resulting quality improvement advanced the wine into a higher price tier, positioning it as a profitable addition to Sonoma Bespoke’s portfolio. [READ MORE…]