FAQ

Can Drinking Overnight Tea Cause Cancer?

Netizen Inquiry: I saw an article online saying that drinking overnight tea can cause cancer and other health hazards like diarrhea. Is this true? Chang-Hsing Reply: This is an internet rumor that has been circulating for a long time, and there is no evidence to support that drinking overnight tea causes cancer. However, if tea

What Happens If You Steep Tea Too Long?

Netizen inquiry: What happens if you steep tea leaves for too long? I heard that long steeping releases too much potassium, which can harm the kidneys, damage health, and eventually lead to dialysis. Is this true? Liao Chang Xing: “Steeping tea for too long hurts your kidneys” is an internet rumor that has been circulating

Can Taiwanese Black Tea Fight COVID-19? Does It Help Against the Coronavirus?

Netizen Inquiry: There’s news saying that Taiwanese black tea can fight the coronavirus. Is this true? Can drinking Taiwanese black tea really prevent COVID-19? Chang Hsing’s Reply: This is based on research by Dr. Wu Ching-yuan, Associate Professor in the Department of Traditional Chinese Medicine at Chiayi Chang Gung Memorial Hospital. Tea contains a certain

Does tea go bad if kept for too long?

Customer Question: I forgot about some tea I bought and found it 2 years later—it’s already past the expiration date. Can I still drink tea that has been stored for too long? It was vacuum-sealed when I bought it. Chang-Hsing’s Reply: The expiration date on packaged tea is typically 2 years. This follows the standard

How long can brewed tea be kept?

Netizen inquiry: How long can brewed tea be kept? I’m used to brewing a large pitcher at a time and usually finish it over the course of a week. I heard this isn’t good—is that true? Exactly how long can brewed tea be stored? Chang Hsing’s reply: It depends on whether you keep it at

What is Oolong tea

What is Oolong Tea? Demystifying Oolong and Qingcha!

A beginner tea enthusiast wrote in asking: What kind of tea is oolong? Some say it’s qingcha (oolong/teal tea), while others say it’s a partially fermented tea. But when I drink oolong tea, it tastes a lot like green tea. So, what exactly is oolong tea? Liao Chang Xing Reply: What is Oolong Tea? Tea

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