White wine the death knell of northern viticulture. The vine disappeared from northern Germany and Baden, and the maximum altitude for viticulture descended to 220 metres. Hans-Jürgen Otto noted that: "all the vineyards suffered and decreased in area". In England the vine also disappeared. The less early vineyards preferred to select white varieties of grapes because, even if unripe, white grapes allowed wine that was a little sour to still be consumable, while red grapes do not give enough colour and green tannins make the wine bitter. The interruption of the fermentation by a cold winter led to the discovery of the
Olmo grapes 2.6% of the total grape production in Israel, totaling (in 2012) 1,408 tons. According to wine expert Jancis Robinson, Emerald Riesling produces an aromatic, high acid wine that doesn't quite have the flavor definition more commonly associated with Riesling or its cool climate crossings. In cooler climate areas where it has been planted, such as the Monterey AVA, it can share some traits with Riesling but with a distinctly fuller body. Emerald Riesling is also known under the synonyms California 1139 E 29, Emerald Rizling, and Riesling Izumrudnii. Olmo grapes Olmo grapes are wine and table grape varieties produced by