1. Lack of specialties: Compared with other cities, the local specialties in Hangzhou may not be well-known, so the outside world's awareness of its food is low.

2. Underdeveloped food culture: Hangzhou's food culture may not be as developed as other cities, and it may lack corresponding promotion and publicity.

3. Geographical limitation: Hangzhou is located in the east of Zhejiang Province, which may be limited by geographical location, and it is difficult to integrate the food culture of other regions.

4. Fierce competition in the catering market: The fierce competition in the catering market in Hangzhou may lead many restaurants to adopt some less authentic practices in order to attract customers, which may affect the quality of local cuisine.

5. Different evaluation criteria: The evaluation criteria for food vary from person to person, and different people have different taste preferences and evaluation criteria. Some people may think that the food in Hangzhou is not outstanding enough, and some people may value the special food in Hangzhou.