A culinary desert is an area that lacks culinary culture and diversity. This can occur due to factors such as geographical location, historical reasons, economic backwardness and cultural barriers. Food culture varies greatly from city to city, with some cities enjoying a renowned culinary culture while others are considered culinary deserts.

In a sense, no city is entirely a culinary desert. However, a city's level of culinary excellence can be assessed based on the following factors:

1. Number and type of restaurants: A city with a wider variety of restaurants, such as Chinese, Western, Japanese, Korean, fast food, cafes, etc., offers a wider range of choices, which better reflects the diversity of culinary cultures.

2. Freshness and quality of ingredients: The fresher and higher quality the ingredients used in a city's cuisine, the better and more appealing the taste and flavor of its dishes will be.

3. Local specialties: Every region has its own culinary specialties, and a city that does a better job of presenting local specialties means that the region's food culture is richer and more diverse.

4. Restaurant environment: the better the environment of a city's restaurants, the better the dishes will taste and provide a better dining experience.