Paper towels Baking soda Old toothbrush Dish soap
You will still have some baking soda residue left over. Don’t worry. This is normal, and it will wash out. You may have to repeat the baking soda step for tough stains. Simply add more baking soda, wait another 30 to 60 minutes, then scrub it out.
Try adding 1/2 to 1 cup (118 to 237 milliliters) of white vinegar to the wash cycle. This will make the detergent even more effective.
Cornstarch Dish soap Cold water Sink or tub Sheet of paper larger than the sweater Pencil or pen Large towel
You may need to follow up with the washing instructions on the care tag. This means that you may need to take the sweater to a dry cleaner, hand wash it, or put it in the washing machine. Do not leave this solution for too long on the wool, or you may discolor the fabric.
Cardboard (recommended) WD-40 Baking soda Dish soap Old toothbrush Small bowl and Q-tips (for small stains) Washing machine
You will probably end up with lots of white powder everywhere. Don’t worry. This is normal. The baking soda will wash off.
You can also try using cornmeal or cornstarch on its own, without the dish soap. The powder will help absorb the oil. [9] X Research source
Hydrogen peroxide should not stain dark fabrics, but it may. If you are worried about this, it might be a good idea to test it out on an inconspicuous area, such as a hem or cuff.