Group 1 - The article highlights the increasing popularity of traditional mooncakes, particularly the innovative "old vinegar mooncake" in Shanxi, which combines traditional techniques with new flavors, resulting in a 20% increase in orders compared to the previous year [6][4][1] - In Hangzhou, the "Tingzhi mooncake" remains a top seller, with a production capacity of 40,000 pieces per day, yet still facing high demand and supply shortages [14][7] - The "Tingzhi mooncake" has a rich history of over a hundred years and has adapted to modern tastes by introducing new flavors while maintaining traditional production methods, appealing particularly to younger consumers [13][10][7] Group 2 - The production process of the "old vinegar mooncake" involves mixing traditional hollow mooncake textures with the flavor of aged vinegar, which has garnered significant consumer interest [6][4] - The "Tingzhi mooncake" production involves seven traditional steps, ensuring the quality and authenticity of the product, which contributes to its sustained popularity [14][13] - The article notes that the demand for mooncakes is particularly high as the Mid-Autumn Festival approaches, leading to increased production efforts in various regions [6][1]