Apply chalk grey water or gypsum powder on the glass door in advance. After the glass is dry, wipe it directly with a dry cloth to remove stains and wipe the glass clean.

For the old dirt accumulated in the corner of the glass door, when cleaning, you can mix half cold water and half clean water, put it in a spray can, spray it on the glass, and then gently wipe it with old newspaper.

Occasionally, there may be black spots on the glass door, which can be wiped with a cloth dipped in toothpaste.

Using plastic wrap and a damp cloth sprayed with detergent can also give a new life to glass doors that are often greasy. Spray cleaning agent on the glass door first, then apply cling film to soften and solidify the oil stains. After 10 minutes, remove the cling film and wipe with a damp cloth. If there is handwriting on the glass door, it can be wiped with a rubber soaked in water and then wiped with a damp cloth. If there is paint on the glass door, it can be cleaned with cotton dipped in hot vinegar. Wipe the glass with a clean dry cloth dipped in alcohol to make it crystal clear.