-There are some 24,000 names for varieties of wine grapes.
-Ampelographers believe these represent about 5,000 truly different varieties, since most varieties have numerous names, depending on where they are grown.
-Of those 5,000 grape varieties, only 150 are planted in commercially significant amounts.
-And of the 150 varieties, only the following nine are considered classic:
Chardonnay/ Chenin blanc/ Riesling/ Sauvignon Blanc/ Semillon
Cabernet Sauvignon / Merlot / Pinot Noir /Syrah