The selection of crisp, dry, varietal and geographically labeled wines from many parts of the world have never been so plentiful. Gone from most labels is the traditional Hebrew lettering. Instead, The Union of Orthodox Congregations of America's O-U symbol signifies a Kosher product. Kosher wines are produced under the strict supervision of rabbinical authorities. Jewish dietary laws are especially strict for wine, ensuring their utmost hygiene and purity.
Flash pasteurization is a common practice.
Wines that are certified Yayin Mevushal, universally kosher, signify that the fermented wine has been flash pasteurized. Pasteurization does not affect the taste, according to many producers of Kosher wines, and in fact, the process helps to stabilize the wine's color, tannin and fruit components. Wines are then guaranteed kosher to the drinker even if served by a non-observant Jew, as could happen with a caterer, in a hotel or at a restaurant. Certified Kosher for Passover. High acidity feels moderate in the mouth due to the 2.1 percent Residual Sugar.