1. The upstream industry can be food development, production, logistics and distribution, and chef training.

downstream are some finished product processors and suppliers, and most of the profits are concentrated in the downstream.

Strictly speaking, catering directly faces consumers, and there is no clear downstream. In the horizontal direction, the service industry and the entertainment industry can be

2. The catering industry, the main content of which is that organizations or individuals engaged in this industry (such as restaurants, hotels, food processing plants) can meet the dietary needs of diners by processing food, so as to obtain corresponding service income. Due to the different eating habits and tastes of different people in different regions and cultures, restaurants around the world show diversified characteristics.