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
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