The wine consists of 70 to 90% pure water. The second largest proportion is ethanol (the type of alcohol with the largest proportion), which in turn contains mostly water, with an alcohol content of 7 to 15% by volume, depending on the type of wine; for special wines up to 20% by volume and more. The other substances in the wine form the total extract. The water in the soil results from the amount of precipitation and any artificial irrigation that may have taken place. Water in the right quantity is an important prerequisite for the growth of the vine and plays an essential role in photosynthesis. Not only soil water, but also air humidity is important. Plant tissue consists of at least 80% water.
In the past, you needed a wealth of encyclopaedias and specialist literature to keep up to date in your vinophile professional life. Today, Wine lexicon from wein.plus is one of my best helpers and can rightly be called the "bible of wine knowledge".Prof. Dr. Walter Kutscher
Lehrgangsleiter Sommelierausbildung WIFI-Wien