Gastronomy involves discovering, tasting, experiencing, researching, understanding and writing about food preparation and the sensory qualities of
human nutrition as a whole. It also studies how nutrition interfaces with the broader culture. The biological and chemical basis of cooking has become known as
molecular gastronomy, while gastronomy covers a much broader, interdisciplinary ground. Pascal Ory, a French historian, defines gastronomy as the establishment of rules of eating and drinking, an "art of the table", and distinguishes it from good cooking () or fine cooking (). Ory traces the origins of gastronomy back to the French reign of
Louis XIV when people took interest in developing rules to discriminate between good and bad style and extended their thinking to define good culinary taste. The lavish and sophisticated cuisine and practices of the French court became the culinary model for the French.
Alexandre Grimod de La Reynière wrote the gastronomic work (1803), elevating the status of food discourse to a disciplined level based on his views of French tradition and morals. Grimod aimed to reestablish order lost after the revolution and institute gastronomy as a serious subject in France. Grimod expanded gastronomic literature to the three forms of the genre: the guidebook, the gastronomic treatise, and the gourmet periodical. The invention of gastronomic literature coincided with important cultural transformations in France that increased the relevance of the subject. The end of nobility in France changed how people consumed food; fewer wealthy households employed cooks and the new bourgeoisie class wanted to assert their status by consuming elitist food. The emergence of the restaurant satisfied these social needs and provided good food available for popular consumption. The center of culinary excellence in France shifted from Versailles to Paris, a city with a competitive and innovative culinary culture. The culinary commentary of Grimod and other gastronomes influenced the tastes and expectations of consumers in an unprecedented manner as a third party to the consumer-chef interaction. ==Writings on gastronomy==