The way to clear the porcelain with acetic acid
If you want to clear the porcelain with acetic acid, you should use it first. Water and cloth are commonly used things. If the stain is solid, it needs to be specially cleaned.

First dip a cloth in water and wipe the porcelain surface to remove the stain. Wipe the stain evenly, do not wipe the porcelain surface. If you encounter stains and remove them, it is advisable to clean them less, set them on the stain, and wait for a while to make the cleaning work.

Wipe them with a cloth and use water to keep them clean. Clean the stain, wipe them with a cloth to prevent them from growing or leaving water.

Also pay attention, do not wipe it with a rough object, so as not to damage the porcelain surface; do not use acid containing acid to prevent its rot. In this way, porcelain acetic acid can always be beautiful.