To make the iron pot never rust after one-time treatment, you need to prepare the following items: water, chopsticks, a piece of lard and an induction cooker.

1. First, take out the iron pan and rinse it with clean water.

2. Put the iron pot on the induction cooker, turn on a small fire and slowly evaporate the water in the iron pot.

3. Next, hold a piece of lard with chopsticks, continue to heat the iron pan, and wipe all corners of the iron pan with lard.

4. Then clean the wok with a rag.

5. Just rinse the pot with clear water.

6. After the final treatment, the iron pot will not rust again.