1. 1. The first step is to prepare two bags of fresh milk, as shown in the figure below.

2. Step 2: Pour a bag of milk into the pot, as shown in the figure below.

3. Step 3: Boil the milk until it bubbles, as shown in the figure below.

4. Step 4: Add another bag of milk, as shown in the figure below.

Step 5: Pour out the boiled milk until it gets cold.