{"slug":"how-much-caffeine-is-in-tea","title":"How Much Caffeine Is in Tea?","topic":"health_and_wellness","excerpt":"Roughly 25-50 mg per cup, versus about 95 mg for coffee. Amounts by tea type, and why brewing matters more than type.","published_at":"2026-10-04T23:46:23Z","web_url":"https://timebeforetea.com/articles/32-how-much-caffeine-is-in-tea","content":"A cup of tea has roughly 25 to 50 mg of caffeine, compared with about 95 mg in a cup of coffee — so most tea lands somewhere around a third to half of coffee's caffeine.\n\nBut the range is wide, and how you brew matters as much as which tea you choose.\n\n## Rough amounts by type\n\nPer 8 oz cup, brewed normally:\n\n- **Black tea:** 40–70 mg\n- **Pu-erh:** 30–70 mg\n- **Oolong:** 30–50 mg\n- **Green tea:** 25–45 mg\n- **White tea:** 15–30 mg\n- **Matcha:** 60–70 mg (you drink the whole leaf, not an infusion)\n- **Herbal tea** (chamomile, mint, rooibos, hibiscus): **zero**\n\nFor comparison, brewed coffee is commonly around 95 mg per 8 oz cup, and the FDA considers 400 mg a day an amount not generally associated with negative effects for healthy adults.\n\nTreat all of these as approximations. Real cups vary a great deal.\n\n## Why the numbers vary so much\n\nThis is the part most caffeine charts leave out: **your brewing choices change the result more than the tea type does.**\n\nA 2025 analysis of tea infusions found that longer steeping raised caffeine substantially — one tea rose several-fold when brewed for ten minutes rather than briefly — and that tea bags released more caffeine than loose leaf of the same tea.\u003csup class=\"citation-ref\"\u003e\u003ca href=\"#citation-1\"\u003e1\u003c/a\u003e\u003c/sup\u003e\n\nSo the things that push caffeine up:\n\n- **Longer steeping.** The biggest single factor you control.\n- **Hotter water.** Extracts more of everything.\n- **More leaf** per cup.\n- **Finer or broken leaf,** including most tea bags — more surface area, faster extraction.\n\nWhich means a strong ten-minute green tea can contain more caffeine than a quick two-minute black tea, despite black tea \"having more caffeine.\"\n\n## Herbal teas have none\n\nWorth stating plainly, because the labeling confuses people: chamomile, peppermint, rooibos, hibiscus, ginger, and lemon balm contain **no caffeine at all**. They aren't made from the tea plant.\n\nThe exception is yerba mate and guayusa, which are herbal in the sense of not being *Camellia sinensis* but do contain meaningful caffeine.\n\nDecaffeinated tea isn't caffeine-free either — decaffeination typically leaves a small residual amount, usually a few milligrams per cup.\n\n## Does L-theanine change how it feels?\n\nTea contains an amino acid called **L-theanine**, and you'll often read that it makes tea's caffeine feel calmer and smoother than coffee's.\n\nIt's a plausible idea with genuinely mixed evidence. Some studies report that caffeine and L-theanine together improve attention and alertness, but a 2025 review concluded that the science does not yet match the popular claims, citing inconsistent findings and small trials.\u003csup class=\"citation-ref\"\u003e\u003ca href=\"#citation-2\"\u003e2\u003c/a\u003e\u003c/sup\u003e\n\nSo: many people find tea's lift gentler than coffee's, and that experience is real to them. Whether L-theanine is the reason is not settled. A simpler explanation is that a cup of tea just has less caffeine in it.\n\n## If you're cutting back\n\n- **Steep shorter.** The most effective lever, and it costs you the least flavor.\n- **Switch to white tea** in the afternoon, or to herbal in the evening.\n- **Use loose leaf rather than bags,** which extracts somewhat less.\n- **Ignore the \"rinse away the caffeine\" trick.** Briefly steeping and discarding the first infusion is widely claimed to remove most caffeine. It removes only a modest fraction, along with a lot of flavor.\n\n## The practical summary\n\nIf you drink two or three cups of tea a day, you're taking in roughly the caffeine of one cup of coffee. For most people that's well within a comfortable range — and if caffeine affects your sleep, the useful change is usually the hour you stop, not the type of tea you choose.\n","product_handles":[],"store_available":false}