Whence comes Zinfandel? Scientists say it is related to grapes from Croatia and Italy. Throughout history, wine has been consumed for its intoxicating effects. Wine and a sonnet to ponder. The host of a dinner should take the first sip of wine to assure his guests it is not poisoned. In cooler climates, cabernet sauvignon tends to produce wines with blackcurrant notes that can be accompanied by green bell pepper notes, mint and cedar which will all become more pronounced as the wine ages. The principal acid in wine is tartaric acid..