First of all, the discovery technology promotes the development of pasta practice.
Although there are records about pasta around the Han Dynasty, including cooked cakes and Hu cakes, these things have never been fermented. However, in the works of the Jin Dynasty, there have been records of steamed cakes. At that time, it was called steamed bread, so all pasta was called cake. The most common are sesame cakes and scones. Luo cake is equivalent to the cake baked directly from the fire, and the cooked cake is steamed. Later, people mastered books on making dough, so steamed cakes developed rapidly.
Second, Zhao Zhen changed the name of pasta in Song Dynasty.
Song Renzong, whose real name is Zhao Zhen, is similar to the sound of steaming, so people are not allowed to use the word steaming after Zhao Zhen reached the summit, so intellectuals put forward a wonderful name and replaced it with roasted sesame seeds. Because it means baking with fire, baking sesame becomes baking sesame. At that time, the official thought the name was very new, so it spread quickly. Slowly, the name of baked wheat cake was well known to the public.
Third, Wu Dalang sells steamed cakes.
Wu Song once said, "If you sell 10 steamed cakes every day", this is steamed cakes, so Wu Dalang should sell steamed buns. But at that time, there were no steamed buns, and there were no steamed buns, so this practice in Wu Dalang should be the same as steamed buns. However, it was later said that steamed bread is long and steamed cakes are round, so Wu Dalang can only be called steamed cakes.