What is old tofu?

Where are you from? Your question is related to your geographical location. If you are in the north, such as North China, old tofu is tofu brain; There is no old tofu in the northeast; In Jiangsu and Zhejiang, the old tofu refers to the so-called northern tofu (also a local saying, which is different from the tender tofu in the south), and refers to the tofu made by traditional methods with less water content (compared with tender tofu/inner fat tofu) and more compact. Northeast people call this big tofu. Correspondingly, there are also small tofu in the northeast. Forget it, there are too many bean products, and the names vary from place to place. Endless! Hehe, I suggest you study it again: ........... dialect, such as dried bean curd, bean curd skin, venetian blinds and dried silk, is very interesting. Have a nice day! !