Raw materials, regional characteristics.

1. Raw materials: Xiushui sweet potato vermicelli is made from Xiushui sweet potato as raw material, while sweet potato vermicelli is made from ordinary sweet potato as raw material.

Xiushui sweet potato is a specific variety of sweet potato with its own unique taste and characteristics.

2. Regional characteristics: Xiushui sweet potato vermicelli has a gourmet relationship with Xiushui regional characteristics. It has more local characteristics in terms of taste and production technology, while sweet potato vermicelli is more popular.