2. Put the cut tofu into the pot with cold water, and put 1/2 teaspoons of salt (about 3g). After the water is boiled, continue to cook for 1 min, and take out the tofu.
3. Put the fished tofu in cold water, fully cool it, remove it and drain it, and put it in a fresh-keeping bag.
4. Finally, seal the fresh-keeping bag and freeze the tofu in the freezer.
5. The method of making frozen tofu is very simple. Wash the freshly bought old tofu with clear water first, and then soak it in salt water for half an hour.
6. After the tofu is fished out of the salt water, wrap the tofu with something like a fresh-keeping box or plastic wrap, and then put it in the freezer of the refrigerator. After being frozen for 24-48 hours in the cold storage room, the original old tofu will become frozen tofu, which can be taken out for thawing and cooking.
7. Of course, the whole frozen frozen tofu is very difficult to cut, so you can also cut the fresh old tofu into small pieces before refrigerating.