Wine grapes are the type of grapes used to make wine. Catawba, Merlot, PINOT, and MUSCAT are all varieties of wine grapes. Catawba is a white grape variety that is native to North America and is used to make sweet wines. Merlot is a dark-skinned grape variety that is widely grown in France and is used to make red wines. PINOT is a light-skinned grape variety that is used to make both red and white wines. MUSCAT is a white grape variety that is used to make sweet wines.