You can clean leather with vinegar, although you should always dilute the vinegar before you use the vinegar to clean leather.
It's crucial to dilute the vinegar with some water and also test the vinegar on a small area of the leather before using it fully.
Vinegar can be effective for cleaning leather and remove dirt and grime.
However using the vinegar too often to clean leather or in concentrated form can dry out the leather and damage the leathers fibers.
But once in awhile you can safely use the diluted vinegar for cleaning leather, but just don't overdo it.
To use vinegar to clean leather, combine equal parts of warm water and white vinegar into a bowl or container or even a spray bottle.
Then either spray the vinegar and water solution onto the leather or wipe it on to clean the leather.
But avoid getting the leather too wet because it can cause harm to the leather.
Then after you cleaned the leather, be sure to carefully dry the leather out.
You can also clean leather using mild dish soap mixed with some warm water.
Then lightly dampen a soft cloth and then gently wipe the surface of the leather.
Then follow that by using a dry cloth to remove moisture and then condition the leather to keep the leather soft and protected.