In a bowl, combine one part toothpaste with two parts baking soda to create a thick paste. Apply some of the mixture to the white heat mark on your wood table and allow it to sit for a minute or two before wiping it from the surface.
Simply wipe with thin cloth slightly dampened and crumpled up with a light vinegar and water solution. Can add a couple of drops olive oil also, I do, and then buff with a soft clean cloth till shiny.
Buff the surface lightly and evenly with No. 0000 steel wool dipped in linseed oil. Work with the grain of the wood, rubbing evenly on the entire surface, until the white haze disappears. Then wipe the wood clean with a soft cloth, apply two coats of hard furniture wax, and buff the surface to a shine.
Use Mayonnaise or Petroleum Jelly
Apply a thin layer (a tablespoon or two) of either product to the stain and let it sit for a few hours. Leave it on longer if the stain seems extra determined to stick around. Wipe away the product with a clean, damp cloth.
Before I get ahead of myself... hazy white stains are caused by moisture trapped between the finish on your table, and the wood itself. They are caused by water or condensation sitting directly on the wood. For example, condensation dripping off ice-cold water glasses, or hot food plates resting on the table.
To fix this, the surface needs to be scuffed and sanded first. Second, we recommend applying a sanding sealer to protect the top. Sanding sealer has a larger resin particle, so it will provide a better build for the next sanding step. Then finish with your topcoat.
Wearing gloves, apply mineral spirits to a soft cloth and rub what remains of the light water stain. In a few minutes, the stain should start to disappear. If the stain is still visible, apply a coat of furniture polish onto the wood floor.
Try oxalic acid first. The Savogran label says to mix the whole 12-ounce container into 1 gallon of hot water, but you can scale that down and mix one-fourth of the contents into 1 quart of hot water. Apply the solution to the whole tabletop, not just the stain, with a scrub brush.
Homemade Grout Haze Remover
Add three to four parts of distilled white vinegar to one part of cool water in a spray bottle. Mix but do not shake. When using vinegar to remove grout haze, it's usually necessary to use a non-scratching scrubbing pad to boost the removal process.
To remove a white spot from a wooden table, apply a small amount of mayonnaise or petroleum jelly to the spot, cover with a cloth, and leave it overnight. Gently buff the area with a clean, dry cloth. For stubborn spots, consider using a wood cleaner designed for this purpose.
In a bowl, combine one part toothpaste with two parts baking soda to create a thick paste. Apply some of the mixture to the white heat mark on your wood table and allow it to sit for a minute or two before wiping it from the surface. You may need to do this a few times in order for the stain to fully disappear.
You may make a spray with baking soda and water by combining the two in a spray bottle. Wet the moldy area with the solution and clean it with a gentle brush or cloth. Spray some of the baking soda and water solution on the powdery white mold on wood after you've cleaned it if you feel like it needs more work.
For the scorch marks, just take an iron and apply heat to the cloudy blotches, they'll disappear!
Mix equal parts vinegar and water (or olive oil) in a container. Dip a soft cloth into the vinegar and water solution and wring out any excess liquid. Gently rub the damp cloth over the water stain on the wood surface. Allow the solution to sit on the stain for a few minutes to penetrate the affected area.
Apply hydrogen peroxide directly to the stain, and let it sit for a few minutes. Afterward, wash the fabric as you normally would. Be sure to test a small, inconspicuous area of the fabric first to ensure the hydrogen peroxide doesn't cause any discoloration.
Remove Water Rings with Mayonnaise
The oil in mayonnaise works to displace the moisture in a water ring and remedy any cloudy residue in the finish of wood furniture. We found this to be one of the most effective cleaning methods for removing water stains.
Murphy Oil Soap can also be used. Be sure to follow the instructions on the container and spray the product on a damp cloth and then to gently wipe the finish to remove the build up. It may require several applications.
Vaseline can be a great quick fix if you are trying to remove a light water stain from wood. It's a good solution for wood table tops because they are a high touch surface!
Lightly sand the cloudy areas with fine-grit sandpaper. Reapply a thin coat of polyurethane, ensuring proper drying conditions. Using a dehumidifier in the work area helps reduce moisture and prevent cloudiness. Ensure each coat of polyurethane is fully cured before applying the next layer.
Make a paste of white, non-gel toothpaste and baking soda. Apply the mixture using either a soft cloth or an old toothbrush. Gently rub the spot in a circular motion until it disappears. Being gentle is most important here — you can remove or scratch your furniture's finish if you apply too much pressure.