Winemaking, or Vinification, is the process of turning the harvested grapes into wine. Sometimes the vitculturist and the winemaker are the same person, and sometimes not. You can't make really good wine from bad grapes, but you can make bad wine from good grapes, so vinification is just as important as viticulture. If the winemaker is not the same person as the vitculturist, they will need to work closely together at harvest time, to make sure that the grapes arrive at the right time. This is particularly complicated in larger operations, as the different grapes will reach ripeness at different times, and as the winery will have a limited amount of grapes it can handle at one time. The workload must be organized so the grapes are processes in a timely fashion.