If vintage just reflects a region's weather patterns in a given year, then what makes a vintage good or bad? Essentially, the defining feature of a.
A wine's vintage can greatly impact the taste, flavour and enjoyment so it's worth knowing the definition of what really makes a wine a vintage.
Vintage, in winemaking, is the process of picking grapes and creating the finished product—wine (see Harvest (wine)). A vintage wine is one made from grapes that were all, or primarily, grown and harvested in a single specified year. In certain wines, it can denote quality, as in Port wine, where Port houses make.
A wine's vintage simply tells you which year the grapes were picked. just right to produce grapes of a sufficiently high quality to make Vintage.