Soak a scouring pad in vinegar for several minutes. Remove the pad and gently rub the glasses. Use a circular motion on the inside and outside of the glassware. Rinse and dry with a soft, lint-free dish rag.
Pour baking soda on over the glasses. Dip a toothbrush in water and then brush the baking soda around the glass. Make circular brush strokes on the glass. Rinse and dry.
Prepare a mixture of water, liquid detergent and ammonia. Fill a large plastic tub or dishpan of water. Add 1 tbsp. detergent, 1/4 cup ammonia and stir. Place the glasses in the tub and let soak for 20 minutes. Remove the glasses and rinse under water. Dry.
Fill the clean glasses with water. Drop a denture tablet into the glass and let fully dissolve. Allow the glasses to sit for twenty minutes. Rinse and dry.