Tannin could possibly be included now, later while in the winemaking process, or not at all. Tannin may be additional to aid stabilize colour, to circumvent oxidation, and to aid beat the effects of rot. The field of liberal scientific tests includes a wide array of online programs, from English https://rotwein03579.ivasdesign.com/51100188/not-known-factual-statements-about-rotwein