Are Your Favourite Teas Actually Safe? Let’s Break It Down

Discover what’s really in your tea. From loose-leaf to matcha, learn about metal levels, safety insights, and why your daily brew is safe to enjoy!

TEA LIFEEDITOR'S PICKS

Jiang Yitao

1/11/20252 min read

white and brown ceramic mug
white and brown ceramic mug

Ever wondered what’s actually in your daily cuppa? You’re not alone. With so many tea varieties on the market—loose-leaf, bagged, powdered—questions like “Is my tea safe to drink?” or “What metals could be lurking in my brew?” have started to pop up. And let’s face it—no one wants to sip on a toxic cocktail.

Good news? Most teas, even those fancy tea powders, are safe for daily consumption. But there’s more to the story, so let’s get into it.

What’s Really in Your Tea? (No, Not Just Antioxidants)

Here’s the scoop: A recent analysis by a CDC in China examined 39 tea samples—including loose-leaf, bagged, and powdered teas—testing for 15 metals like manganese (Mn), aluminium (Al), zinc (Zn), and heavy hitters like lead (Pb) and cadmium (Cd). The results? They’re eye-opening.

The Good Stuff

  • Manganese, Aluminium, and Zinc: Found in higher concentrations, but nothing to freak out about. These are generally safe metals your body can handle in small doses.

  • Low Risk Metals: Chromium (Cr), copper (Cu), arsenic (As), cadmium (Cd), and lead (Pb) were found in very low amounts across all tea types. That’s a relief, right?

The Key Takeaway

Even when considering the THQ(target hazard quotient)—a measure of health risk—the levels were well below 1, meaning there’s no significant risk to your health.

Is Powdered Tea Riskier Than Regular Tea?

Here’s where things get spicy. The study found that powdered teas—like matcha or instant tea—have higher HI(hazard index) values compared to loose-leaf or bagged teas. Why? Concentration.

Powdered teas are essentially condensed forms of tea leaves, making their metal concentrations naturally higher. But before you chuck your matcha stash, here’s the kicker:

  • The average person drinks far less powdered tea daily (1g or less) compared to the 8g used in the study’s calculations. So, in reality, the risk remains negligible.

What About Carcinogenic Risks?

Yep, the study looked at that too. The cancer risk linked to metals like chromium (Cr) and nickel (Ni) was analysed, and the results were reassuring:

  • The lifetime cancer risk from drinking tea is well below the acceptable threshold recommended by health authorities like the US EPA.

FAQs About Tea Safety

Q: Should I stop drinking powdered teas like matcha?

A: No need! While powdered teas have higher concentrations of metals, your actual intake is likely far below concerning levels. Just stick to reasonable portions.

Q: Which teas are the safest to drink?

A: All tea types studied—loose-leaf, bagged, and powdered—are safe. If you’re extra cautious, opt for loose-leaf teas, as they showed slightly lower metal concentrations.

Q: What metals should I be concerned about in tea?

A: Lead (Pb) and chromium (Cr) are worth keeping an eye on, but their levels in tea are generally safe unless you’re drinking absurd amounts.

The Bottom Line

So, is your tea safe? Absolutely. Whether you’re a green tea enthusiast, a black tea loyalist, or a matcha fanatic, you can sip with confidence. The metal levels in tea are far below harmful thresholds, and even powdered teas—often viewed as riskier—are safe when consumed in moderation.

And next time you brew your tea in a Yixing Zisha teapot, you can drink it with full confidence knowing it’s as safe as it is delicious.

Now, go enjoy that next cup. You’ve earned it.