All white wine comes from white (actually yellowish) grapes.
Answer: False.
No matter if the skins of grapes are red or white, the pulp—the juice and material inside each grape—is almost always white. That means that if red grapes are pressed quickly and the skins are immediately removed from the juice, you can make white wine out of red grapes. The most common example of this is sparkling wine and Champagne where the red grape pinot noir is used to make Champagne, which is generally white.