To remove coffee stains from Nano Stone kitchen counters, follow these steps:

1. Blot excess coffee with a clean cloth or paper towel.
2. Mix a small amount of dish soap with warm water.
3. Dip a soft cloth in the soapy water and gently rub the stain in a circular motion.
4. Rinse the cloth in clean water and continue to gently rub the stain until it disappears.
5. If the stain remains, mix baking soda with water to create a paste.
6. Apply the paste to the stain and let it sit for a few minutes.
7. Use a soft-bristled toothbrush to gently scrub the stain.
8. Rinse the area with clean water and dry with a clean cloth.

Do not use abrasive cleaners, vinegar, or bleach on Nano Stone counters as these can damage the surface.