Wet a soft sponge in warm water. Add a drop of dishwashing liquid to the sponge.
Scrub grime off the glass with the sponge. Use a toothbrush to clean out crevices in the glass, if applicable.
Rinse the glass with a clean sponge dampened in clean water. Mix 1 cup of white vinegar or 1 cup of baking soda with 1 cup of warm water in a bowl.
Wipe this solution over the glass and leave it for 15 to 30 minutes without rinsing. Rinse the glass with a clean damp sponge and dry it with a soft, clean towel.
Place a rubber mat or towel on the bottom of your kitchen sink. Place the glass item on this and fill the sink with warm water until the water is deep enough to cover the glass.
Add dishwashing liquid to a damp sponge and wash grime off the glass. Use a toothbrush or bottlebrush to clean out crevices in the glass, if necessary. After washing, add either 1 cup of white vinegar or 1 cup of baking soda to the water.
Soak the glass in the sink for 15 to 30 minutes. After the time is up, let the water drain from the sink and rinse the glass with fresh water.
Dry the glass with a clean towel.