Cigarette smoke carries with it a strong odour that can quickly be absorbed into furniture. When you have a leather couch in the home, the cigarette odour can be very strong and requires an odour removal routine that deodorises without damaging the leather surface. Incorporate a moisturising ingredient as you clean to avoid cracked and brittle leather.
Mix 2 parts linseed oil and 1 part white vinegar in a bowl. The vinegar works to clean and deodorise while the oil restores moisture. For an average sized couch, 2 cups oil and 1 cup vinegar should be plenty.
Dip a cleaning rag into the mixture and wring it out.
Wipe down the leather couch with the rag, rubbing the solution deep into the leather. Continue across the entire couch.
Let the couch air dry, then follow up with a clean rag to buff away any leftover cleaning residue.