Tea Scale Poses a Cancer Risk
Scientific research indicates that tea scale, the brown residue that forms inside teacups, contains harmful heavy metals such as cadmium, lead, mercury, and arsenic, which can leach from mineral-rich water and tea leaves. When left uncleaned, this scale accumulates and can enter the body during drin...
Tea News · Dec 14, 2025
Tea Stains Contain Heavy Metals Harmful to Health
Research reveals that tea stains contain toxic substances including cadmium, lead, mercury, arsenic, and carcinogens like nitrites. These substances adhere to smooth cup surfaces and enter the digestive system during tea consumption. They combine with proteins, fatty acids, and vitamins from food, f...
Tea News · Nov 02, 2025
Tea Sets Should Be Washed Frequently, Tea Stains Are Most Harmful to Health
Tea sets that are used for a long time without proper cleaning will develop tea stains on the inner walls. These stains contain various metal substances such as cadmium, lead, iron, arsenic, and mercury. When drinking tea, these harmful substances enter the body with the water and combine with nutri...
Tea News · Oct 30, 2025
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