When cleaning wine glasses, the following points should be noted:

1. Pour away the liquor in the glass before cleaning, and wet the inside and outside of the glass with warm water to avoid excessive adhesion of dirt.

2. Use warm water and neutral detergent to gently clean the glass, avoid using overheated water or strong acidic/alkaline detergent, so as not to cause damage to the glass.

3. Use a soft sponge or dishwashing brush to clean the glass, and try to avoid using metal or hard brushes to avoid scratching or damaging the surface of the glass.

4. Pay special attention to cleaning the mouth of the wine glass, because wine stains and grease are easy to accumulate here. You can use a small brush or cotton swab to gently clean the mouth of the glass to ensure that dirt is thoroughly removed.

5. Rinse the glass with water after cleaning to ensure that residual detergent is removed.

6. After the glass is cleaned, gently dry it with a clean, fiberless cloth or paper towel to ensure that the glass has no water marks.

7. It is best to wash the wine glass manually and avoid using the dishwasher, because the dishwasher may cause damage to the wine glass.

In short, the wine glass cleaning should be careful, gentle, and pay attention to protect the appearance and quality of the wine glass.