Production process:
1, old tofu cut into pieces, thick squares or long squares are ok, as long as it is not too thin.
2. Add water to the steamer and brush a drop of oil on the steamer evenly to prevent tofu from steaming and sticking.
3. Cut the tofu, cover it with a big fire and steam it. Steam the pot on a small fire for about 20 minutes. If it is cut thick, steam it for a while.
4. After steaming, turn off the fire, take out the steamer, let the tofu cool, and then put it in the freezer. Try not to stack the tofu together. When it is open, the tofu is not sticky, so it is easy to take when it is used.
5. It will be done in the freezer for more than one night, and the rest can be eaten at any time, and it is no problem to freeze for several weeks.