Grimy stains on wood furniture are not only ugly, but they are also often sticky and smelly. Food, beverages and dirty hands are often the culprits. Do not use anything abrasive on finished wood furnishings no matter the cause of the grime. Use these easy ways to remove ugly mystery blotches, spots and spills. It does not matter what they are as long as they come off.
Start with a Microfiber Cloth
Before using anything to remove grimy stains on wood furniture, start with a microfiber cloth. Do not apply anything but a little elbow grease. Apply furniture polish and you will end up smearing it around and making an even bigger mess. Use the dry cloth. The mystery marks might come off, and you will not need to use anything more. If the grimy stains are hanging on, it might take something with a little pull to remove them.
Try a Kneaded Gum Eraser to Blot the Stains Away
When messy stains will not come off of finished wood furniture, try a gum eraser. It is not the typical eraser that you would find on the end of a pencil. On the contrary, it is much more flexible. It can be found online and in art supply stores. For best results, knead the eraser until it is soft and slightly warm. To remove grimy stains on wood furniture, do not use it like a pencil eraser. Blot the marks with the kneaded gum material. With any luck the grime will come off.
Use a Little Mayonnaise and a Soft Clean Cloth
If a dry microfiber cloth did not work and you do not want to pick up a gum eraser, step on over to your refrigerator. Mayonnaise works wonders to remove grimy stains on wood furniture. Apply a small amount to a clean dry microfiber cloth, and use a circular motion to gently rub away the stains. They will likely come off unless the mess has melded with the varnish or soaked completely through it.
Use Real Orange Oil to Clean and Protect the Wood
If the aforementioned methods fail, buy real orange oil to clean and protect your wood furniture. Generously apply it to a clean dry microfiber cloth, and briskly polish the stains away. Although it is a natural cleaner and polisher, it works exceptionally well. If real orange oil does not remove the mess, contact a professional. If the grimy stains have penetrated the varnish and have settled into the wood, the piece might need to be refinished.
Source: Advanced Crafting Education and Professional Cleaning and Decorating Experience