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The Oechsle scale is a hydrometer scale measuring the density of grape must, [1] which is an indication of grape ripeness and sugar content used in wine-making.It is named for Ferdinand Oechsle (1774–1852) and it is widely used in the German, Swiss and Luxembourgish wine-making industries.
Yeast need a reliable source of nitrogen in forms that they can assimilate in order to successfully complete fermentation. Yeast assimilable nitrogen or YAN is the combination of free amino nitrogen (FAN), ammonia (NH 3) and ammonium (NH 4 +) that is available for a yeast, e.g. the wine yeast Saccharomyces cerevisiae, to use during fermentation.
The yield of grapes that will be harvested from a vineyard will depend on several factors including vintage conditions, local wine laws and winemaker's preference. In viticulture, the yield is a measure of the amount of grapes or wine that is produced per unit surface of vineyard, and is therefore a type of crop yield. Two different types of ...
Winkler index Region/class °F units °C units General ripening capability and wine style Region Ia 1500–2000 850–1111 Only very early ripening varieties achieve high quality, mostly hybrid grape varieties and some V. vinifera.
In viticulture, veraison (French: véraison, IPA: [veʁɛzɔ̃]) [1] is the onset of the ripening of the grapes. The official definition of veraison is "change of color of the grape berries". [ 2 ] Veraison represents the transition from berry growth to berry ripening , and many changes in berry development occur at veraison.
The five living U.S. presidents — Joe Biden, Donald Trump, Barack Obama, George W. Bush and Bill Clinton — reunited to honor the life and legacy of Jimmy Carter. On Thursday, Jan. 9, a date ...
The Detroit Free Press reported at the time that 634 of the jobs being cut then were at the GM Global Technical Center in Warren based on information provided to the state of Michigan.
Pamela Anderson is reflecting on the "difficult" combination of her image as a Hollywood star and, simultaneously, a mother, earlier in her career. But when it comes to her sons Brandon, now 28 ...