After drinking coffee from a glass, you want it to look clean. If the glass does not look clean and clear, then you will not be satisfied. And if you are not satisfied with your glass after drinking coffee out of it, then maybe you should consider buying another cup!
Use cold water and a soft cloth to rinse the glass until the water runs clear. Do not use soap or detergent; it will leave behind a residue that will make your coffee taste bitter and nasty.
Dab dry with a paper towel, then set on a rack to air-dry completely before using again
To remove the stain, use a toothbrush to scrub the glass. Scrubbing hard enough can remove the stain.
Vinegar and salt are two of the most effective natural cleaning products. They're cheap, safe, easy to find, and easy to use.
You can use vinegar (apple cider vinegar works best) as a disinfectant or cleaner on its own; just add it directly into your glass before washing it with soap and water. But if you want to use both the vinegar and salt methods together, here's how:
Rub the glass with the lemon rind until the stain goes away.
A solution of mild detergent and water is a simple and effective way to clean your cup. Make sure you use enough soap to cover the entire interior of the glass and let it soak overnight. Then, rinse it thoroughly with water—you may even want to rinse it again just in case there was any residue left behind from your first wash!
To dry your cup, use a cloth or paper towel (though paper towels are better for drying because they absorb moisture). If you're not worried about getting dried coffee stains out of your cups, then feel free to use a dishwasher on its lowest setting so that all traces of food are gone without damaging them further by hand washing them every time you need one!
If you want to wash your glass, the first step is to rinse it with water. Then clean it with a toothbrush. If that does not work, soak the cup in vinegar and salt solution for a few hours or rub with lemon rind. Finally, use detergent solution as needed.
You can now clean your glass after drinking coffee in it.