WOCA Spot Remover is perfect for removing all indoor spots, dissolving red wine, grease, blood, coffee, or tea. It is soap based and may be used on unfinished, soaped, oiled, or waxed interior surfaces. Simply spray and let sit for 10-15 min, and scrub with a bristle brush until stain has been removed. Repeat treatment as necessary. It may be necessary to re-oil the surface with Master Oil or Maintenance Gel after use to protect the finish.