On the one hand the aromas of Torrontés are reminiscent of Gewürztraminer or Muscat; on the other hand, the texture and flavor are reminiscent of Sauvignon Blanc. Torrontés needs to be served well-chilled and protected from oxygen — too much warmth and/or too much exposure to oxygen will quickly eliminate its characteristic aromas. Torrontés is also best young because its flavors and aromas don't survive forever in the bottle.

You can get Torrontés wines from other regions, like New Zealand, but Argentinian Torrontés is the place to start. The word torrontés is Spanish for "torrent," a very appropriate label considering its potent flavors and aromas. According to marketing researchers, the primary consumes of Torrontes today are young female wine drinkers.

Viognier is traditionally grown in France's northern Rhone valley, but it has also been doing well in the New World, for example California. Viognier wines from France's northern Rhone valley tend towards strong floral aromas; Viognier wines from Languedoc in the south of France tend to be drier, more acidic, lighter in texture, and have more citrus flavors. Wines made with Viognier grapes should generally be drunk young (before 18 months or so) and well-chilled.

Grenache grapes originated in Spain where it is called Garnacha, but Grenache is the name by which the grapes and resulting wine are most commonly known. Grenache wines have flavors and aromas of strong fruit, raspberries, and a bit of spice.

Other characteristics of wines made from Grenache grapes include weak colors, soft tannins, and high alcohol content. Grenache tends to be most closely associated with the southern French region of Rhone where it is grown widely.

Semillon is grown widely in France where it is commonly blended with Sauvignon Blanc — for example, in Sauternes dessert wines — and it is one of only three varieties that can be grown in Bordeaux, France. In California, Semillon grapes are often used to produce generic white wines; Semillon can also produce a good variety wine on its own, though it's not as popular as other white wine grapes. Semillon grows well in many different climates and used to be grown far more widely than it is today.

Sauvignon Blanc is a versatile white grape variety that create white wines ranging in flavor from grassy to mineraly to fruity. Other Sauvignon Blanc flavors and aromas include apples, melons, peppers, and smoke. Sauvignon Blanc tends to be more grassy when picked early, more fruity when picked late. Sauvignon Blanc flavors also depend heavily on where the grapes are grown. The most famous wines made from Sauvignon Blanc grapes come from Bordeaux and the Loire valley in France.