The smell indicates that there are bacteria breeding, which will lead to diarrhea. It is recommended not to eat it.

Usually, bean products are a kind of food with rich nutrition, and they are also easy to rot, so it is very difficult to store them without processing.

If it is transported or carried to other places, it should be sealed as much as possible (vacuum is the best) and stored at low temperature, and it is better if you can add some salt to it. But don't store it for too long, usually only two or three days.

If it is completely dried tofu, it can be preserved for a longer period of time, and it is no problem for a month.