How to remove dirt from copper products

To remove the dirt on copper products, it is necessary to prepare white vinegar, clean water and a rag. The specific cleaning steps are as follows:

1. First, you need to drop a proper amount of white vinegar on the copper products, as shown in the figure below.

2. Next, clean with a rag to remove discoloration and dirt, as shown in the figure below.

3. Then rinse the copper products with clear water, as shown in the figure below.

4. Just polish the bottom with a clean and soft rag, as shown below.

5. Finally, clean the dirt on the copper products, as shown in the figure below.