The differences between these two kinds of tofu include different production methods and different tastes.

1. Different production methods: In the process of making pot-roasted tofu, you need to soak the tofu in soda water, and then perform steps such as covering and fermentation. Ordinary tofu does not involve these methods, and the production process is relatively simple.

2. Different taste: In terms of taste, pot-roasted tofu is more delicate and smooth than ordinary tofu. This is because during the production process, gluconolactone is used for coagulation, which makes the tofu more delicate and tastes better.