How do you make White Wine and Red Wine? Do you use different types of grapes?

My Mom is in the Wine Business and she always brings home half empty bottles of wine and I always wonder What you do to make White Wine, and Red Wine. Do you add artificial coloring? Thanks!|||with red wine the reason it is red is the "juice"'s contact with the skin of the red grape. White wine can be made from red grapes it just doesn't have contact with skin during the crushing process. There are white grape veriatals that are green or pale yellow in color (semillion Sauv Blanc, Cheinin Blanc, Chardonay)|||No, you don't use artificial coloring. Usually, you use different grapes; not always. You can make white wine from red grapes but you can't make red wine from white grapes. The red color comes from leaving the must (juice) in contact with the red (or blue) skins.|||If she's in the wine business, then she'd know:) .... There are different varieties used for different wines, but the skins are also crushed to make red wine.....|||wow yes u use different grapes smart one and why don't u just ask ur mom