Does oil and vinegar restore wood?

Oil and vinegar can restore wood cosmetically to a surprising degree for minor dullness and scratches, but it is not a true long-term restoration or protective finish. The common DIY recipe is equal parts white vinegar or apple cider vinegar and olive oil, sometimes with a little lemon juice. The vinegar acts as a mild cleaner and slightly acidic agent that cleans grime and can help dissolve old wax buildup, while the oil penetrates the surface, darkens dry wood, and adds temporary luster and moisture, making scratches less visible. For lightly faded furniture, this mixture can make wood look richer, more vibrant, and more even in tone, especially on dark woods like walnut. However, it does not provide durable protection, it does not harden, it does not seal against moisture, and olive oil can eventually go rancid and attract dust if overused. It also does not remove deep scratches, water rings, or damaged finish, and vinegar can damage polyurethane if used too strong or too often. For best results, use it as a quick refresh, wipe on a small amount, let sit 10 minutes, buff off thoroughly, and follow with a proper wood conditioner or wax for protection. For heavily damaged wood, you will still need to sand, stain, and seal properly.