There are many terms for the testing and evaluation of wines by man-made "smelling and tasting", a few of which are for example tasting, tasting, wine tasting and wine tasting. This is a sensory (organoleptic) examination of a wine with a descriptive explanation of the knowledge gained in the process according to established rules and criteria using generally valid and understandable terms (see under Wine Approach). This is not carried out in a scientific-analytical manner with technical or other aids, but "only" through the sensory organs such as the eye, nose, palate and tongue. This results in an evaluation by awarding points according to different systems. In addition, there are also possibilities to carry out an objective measurement by means of exact chemical analyses. This is for example the determination of alcohol content, total extract, residual sugar, acids, sulphur and other substances in wine.