Green tea is used to smash tea, also known as Sansheng soup and Hakka tea smashing, and is known as the "China Tea Ceremony Heritage". Lei tea is one of the traditional diet cultures of Han nationality. According to historical records, it was popular in the Central Plains in the Song Dynasty, and it was the most representative delicacy in Hakka's colorful food culture.

Green tea is one of the main tea leaves in China, which refers to a beverage made from the new leaves or buds of tea trees without fermentation, and through the processes of enzyme fixation, shaping and drying. The color of the finished product and the brewed tea soup retain the green style of new tea. Drinking green tea regularly can prevent cancer, reduce fat and lose weight, and also reduce the harm of nicotine to smokers.