While there are many methods to clean a glass stove top, one using a commercially prepared cleaner is likely to give the best results. Wait until the heat indicator light on the glass surface goes off before applying the liquid so it does not bake onto the surface and compound the problems. Cleaning the glass after each use prevents baked on stains.
One of the highly debated topics on Internet discussion boards about cleaning the glass cooktop is the use of razor blades or razor scrapers. Manufacturers recommend using special scrapers, according to HowStuffWorks, but using the corner of a blade can cause scratches. Owners who choose to use a scraper to remove stains should first wet the surface with a liquid cleaner and keep the edge of the blade flat against the surface when cleaning.
When a cleaner is not available and the surface requires cleaning, baking soda, white vinegar or lemon juice are acceptable alternatives. Pour dry baking soda directly onto the stain and scrub it using a damp cloth. The lemon juice or vinegar requires dilution with water before applying it. For baked on stains, a paste of baking soda and water may work. Apply the paste, cover it with a damp to prevent evaporation and let it sit. Scrub the surface to remove the stains. Once they are gone, rinse and dry the stove.