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      • Sorry, but no. Turns out this commonly accepted notion of reducing caffeine in tea is false. Studies have shown 30-second tea wash will extract something like 10% of the caffeine. If you really wanted to get 90% of the caffeine out you’d have to brew the leaves for 15 minutes.
      thetealetter.com/tea-knowledge/tea-caffeine-facts-myths
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  2. There’s evidence the effects of caffeine in a cup of tea are enhanced by an amino acid it contains, called L-theanine, if it is drunk regularly. The research finds “L-theanine may interact...

    • Overview
    • Why is caffeine a concern?
    • Caffeine content varies by beverage type and preparation
    • Which one should you drink?
    • The bottom line

    While black tea, espresso, and coffee bring the most caffeine to the table, green tea packs a moderate amount as well. The content in white teas varies greatly, while herbal teas are practically caffeine-free.

    Caffeine’s popularity as a natural stimulant is unparalleled.

    It’s found in over 60 plant species and enjoyed across the globe, especially in coffee, chocolate, and tea.

    The caffeine content in a beverage varies depending on the ingredients and how the drink is prepared.

    While caffeine is considered safe, drinking too much may raise some concerns.

    This article compares the caffeine contents of various teas and coffees and explores which drink you should choose.

    An estimated 80% of the world’s population enjoys a caffeinated product daily.

    Both the U.S. Department of Agriculture (USDA) and European Food Safety Authority (EFSA) define a safe caffeine intake as up to 400 mg per day, 200 mg per single dose, or 1.4 mg per pound (3 mg per kg) of body weight (1, 2, 3).

    Due to its stimulating effects, caffeine has been linked to health benefits like enhanced alertness, improved athletic performance, elevated mood, and increased metabolism (4, 5, 6, 7).

    That said, consuming high amounts — such as single doses over 500 mg — may raise some concerns (2, 3).

    In large doses, caffeine has been associated with anxiety, restlessness, and difficulty sleeping. In addition, some studies suggest that drinking it regularly, even in moderate amounts, can cause chronic headaches and migraines (8, 9, 10).

    Furthermore, caffeine is considered mildly addictive, and some people may be more susceptible to developing a dependence (9).

    The amount of caffeine in tea or coffee can vary significantly depending on the origin, type, and preparation of the drink (11).

    Tea leaves contain 3.5% caffeine, while coffee beans have 1.1–2.2%. However, the coffee brewing process uses hotter water, which extracts more of the caffeine from the beans. Typically, you also use more coffee beans than you’d use tea leaves for a drink (12).

    Caffeine acts quickly — usually within 20 minutes to 1 hour of consumption (1).

    If you’re sensitive to the effects of caffeine, consider sticking to teas lower in caffeine like white or herbal teas. You may also brew high-caffeine teas for a shorter time, such as 1 minute instead of 3.

    Opting for decaffeinated tea, coffee, and espresso is also a good way to enjoy these drinks without much caffeine.

    On the contrary, if you’re a fan of high-caffeine drinks, you may enjoy espresso, cold-brew coffee, and teas with higher caffeine contents, including green and black varieties.

    To stay within safe amounts, drink no more than 400 mg daily, or 200 mg of caffeine at a time. This translates to no more than three to five 8-ounce (237 ml) cups of regular coffee daily, or eight 1-ounce (30-ml) shots of espresso (18).

    Those who have heart disease, are prone to migraines, and take certain medications should limit their caffeine intake (8, 9, 10, 19).

    How you prepare your tea and coffee affects their caffeine content.

    If you’d like to cut back on caffeine, try steeping your tea for less time, and opt for decaffeinated versions of your favorite coffee- and espresso-based drinks.

  3. Jan 15, 2016 · Based purely on its composition, coffee should win hands down: a cup of tea has about half the dose (40 milligrams) of the stimulant caffeine that you would find in a standard cup of brewed...

  4. Jan 13, 2023 · An RD explains why caffeine from tea (vs. coffee) is less likely to make you feel jitteryplus how to avoid a caffeine crash altogether.

    • 9 min
  5. Oct 2, 2019 · Brewing methods and styles can have a large impact on a tea's caffeine level. Using a higher water temperature, longer brewing time, or a higher ratio of tea leaves to water will increase the caffeine level of your brew. Using tea bags can also influence your tea's caffeine level.

  6. Feb 27, 2017 · Why does tea have caffeine? Tea plants make caffeine as a defense mechanism because its toxic to insects. Because bugs loves to eat the buds and young leaves, tea made from these parts of the bush will have higher caffeine content.

  7. Dec 28, 2021 · Tea also contains a substance called l-theanine, an amino acid that helps to reduce anxiety, improves your mood and calms you down and these effects nicely counterbalance those of caffeine. To add another advantage, tea leaves are a rich source of polyphenols – antioxidants linked to many of tea’s benefits.

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