A server doesn't need to know every Italian native grape on day one. They need the core six. Your PDF should have one line of flavor notes for each:
Knowing a few "pocket wines" allows you to make quick, reliable recommendations. Wine 101: Basic Wine Knowledge for Server Training basic wine knowledge for servers pdf
Guests often don't know how to describe what they want. They say "I like sweet wine," but they mean "fruity." Your PDF needs a simple scale: A server doesn't need to know every Italian