Follow these steps to remove mild acid stains from leather or suede:
- Mix a solution of mild soap in lukewarm water.
- Swish to create a great volume of suds.
- Apply only the foam with a sponge.
- Wipe dry with a clean cloth.
- On leather only, follow with cleaners such as Tannery Vintage Leather Cleaner & Conditioner or Fiebing's Saddle Soap to condition the leather.