Various formulas are used for the exact implementation of blends or cuvées in winemaking with a desired or calculated result. The effect of a blend on analytical values such as alcohol content or acidity can be calculated. The " Cramer 's cross/rule" named after the Swiss mathematician Gabriel Cramer (1704-1752) is usually referred to as the blending cross when blending. This gave the impetus for the development of determinant theory. With the help of determinants, one can determine whether a linear system of equations can be solved unambiguously and can state the solution explicitly with the help of Cramer's rule. Here, the difference between two or even several wines is compared and determined by means of ratio calculation (proportion).
The glossary is a monumental achievement and one of the most important contributions to wine knowledge. Of all the encyclopaedias I use on the subject of wine, it is by far the most important. That was the case ten years ago and it hasn't changed since.
Andreas Essl
Autor, Modena