Seyval Blanc (pronounced say-vahl blonk) is an early ripening variety that is suited to cooler climates; with resistance to low temperatures and disease it has proven to be very successful in England’s capricious climate. It is a hybrid variety, which means it has some American non-vinifera parentage, and it produces wines with characteristic high acidity - ideal for the production of sparkling wine. The grapes for the GMF wine are grown in the single 2.2 hectare ‘Yew Tree Vineyard’ which is located almost in the foothills of the Berkshire Downs, 10 miles south of Oxford. The vines were planted in 2015 and are grown at 70 metres above sea level in sandyloam soils. The grapes are hand-picked at optimum maturity into small crates, to retain the quality of the fruit.
The grapes were fermented with indigenous yeast in a combination of stainless steel tanks and old Burgundy barrels. Once fermentation was complete the wine spent seven months on the gross lees adding texture and complexity. The wine was made using the traditional method, with the secondary fermentation taking place in the bottle; however this wine was made without disgorgement, so the lees form part of the wine, resulting in an intentionally cloudy, funky wine.