Read this before you fire up the grill. Credit: Claudia Totir / Getty ImagesKey TakeawaysThe chefs say the best hot dogs are all-beef, made with a short ingredient list, and free of fillers like soy, starches, and mechanically processed meat.All three experts chose Applegate Organics The Great Organic Uncured Beef Hot Dog for its grass-fed beef, cleaner ingredients, juicy texture, and satisfying snap.Beyond the usual bun and toppings, these hot …