Oechsle scale The mass difference between equivalent volumes of must and water is almost entirely due to the dissolved sugar in the must. Since the alcohol in wine is produced by fermentation of the sugar, the Oechsle scale is used to predict the maximal possible alcohol content of the finished wine. This measure is commonly used to select when to harvest grapes. In the vineyard, the must density is usually measured by using a refractometer by crushing a few grapes between the fingers and letting the must drip onto the glass prism of the refractometer. In countries using the Oechsle scale, the
The Wine Advocate Thomases, Jay Miller and Antonio Galloni. While not the first American wine publication, nor the first to use a numerical wine ratings scale, "The Wine Advocate" was the first to widely adopt the 50-100 point scale and use it as parallel to the American educational grading system. This system was familiar to Robert Parker's original target audience—the average American consumer—and provided a guideline for quantifying a wine's quality in a standardize format. Retailers have used "The Wine Advocate's" "Parker scores" to aggressively market wines with high scores. The scores have also become focal points for collectors and wine investors who