Strategist Explains Our expert staff answers frequently asked questions in their areas of expertise and defines common terms so you can be a smarter shopper. Read more here . Photo: Sal Vaglica Close your eyes and imagine your dream outdoor kitchen. The centerpiece is almost always a gleaming stainless-steel gas grill. High-end gas grills aren’t new, but as a grill reviewer, the Zwilling Flammkraft Model D caught my attention at a trade show a few years back because it cooks using infrared (