Pure white bath towels will turn yellow if used for a long time. How to wash white?

Need to prepare: chopsticks, birdbath, baking soda, toothpaste, laundry detergent and boiled water.

1. First squeeze a proper amount of toothpaste into the basin for later use, as shown in the figure.

2. Next, add a proper amount of baking soda to the basin, as shown in the figure.

3. Pour a proper amount of detergent into the basin, as shown in the figure.

4. Then pour a proper amount of boiling water into the basin and dissolve the baking soda, toothpaste and laundry detergent inside.

5. Then stir evenly with chopsticks, as shown in the figure.

6. We put the yellow bath towel in the basin and soak it for about half an hour.

7. Next, wash the bath towel in the basin, as shown in the figure.

8. Finally, you can wash the yellow bath towel white, as shown below.