Thinking about expanding your wine rack to a full-scale wine room? Planning to upgrade and include a genuine wine cellar? Today you'll learn what you should know to properly store wine above grade or below. Building a new wine-room addition or converting an existing space for wine storage requires more than just building a few new racks. It takes "vino know-how" to create and maintain proper conditions that allow delicate aging without spoilage. Most important is a consistently cool temperature -- between 55 F and 60 F. A steady temperature is even more important than the correct one. As frequent change promotes spoilage, stable humidity is also important -- between 55 percent and 75 percent. If too low, corks dry out and wine evaporates; if too high, it encourages mold. To do it right, you'll need vapor barriers and good insulation, and cooling made specifically for wine storage. Today is Bastille Day in France, so, pop a cork! For more tips, visit our Web site at onthehouse.com. And that's the On The House tip for today.