Cup photography

The reason why the film appears on the surface of tea may be that the water cup is not clean or the tea is not clean, or both.

Unclean water cup: If the water cup is not thoroughly cleaned, some grease, dirt or detergent residue may remain on it. When you pour tea, these impurities may float on the surface of tea to form a film.

Tea is not clean: Tea itself may contain some oil or other impurities. If the tea leaves are not adequately washed, these impurities may dissolve in water and float on the surface of the tea leaves to form a film.

The solution to this problem is to ensure that the cups and tea leaves are clean:

Water cup cleaning: Wash the water cup thoroughly with warm water and detergent to ensure that all grease and dirt are removed. It is best to use special detergent or detergent, rinse thoroughly and dry.

Tea cleaning: Before making tea, it is best to rinse the tea with clear water to remove impurities on the surface. Then brew.

In addition, there are some other factors that may lead to the appearance of film on the surface of tea, such as water quality problems or tea set material problems. If the problem still exists, you can try to change the water source or tea set, or consult a professional for more detailed advice.