(Decanter) - Freezing temperatures across Germany in the nights of 8 and 9 December have ushered in a promising Eiswein harvest – for some estates the first for many years. At Riesling estate Schloss Vollrads in the Rheingau, teams headed out by midnight on 9 December to pick solidly frozen grapes. Christine Höhne, Vollrads’ export manager said, ‘The grapes were very healthy so the wine is very clean, we are totally happy with 195 degrees Öchsle [the must weight, indicating sugar content in the juice]