Green Tea Antioxidants: What They Are and What They Do
We are not doctors, and this article is not medical advice. If you have specific health concerns, please consult a qu...
Updated Jan 2023
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Japanese Tea Encyclopedia
Ingredient/Effect
What's actually in your cup — caffeine, L-theanine, antioxidants — and what the research does and doesn't say. We're not doctors; we read the studies and brew the tea.
23 guides
Tea Aroma Compounds: What Creates the Scent of Every Cup
Brew Gyokuro beside Hojicha and the contrast is clear before you even drink. One has a sweet, marine quality; the oth...
Updated Jan 2023
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Vitamins in Green Tea: What You're Actually Getting Per Cup
A cup of brewed Sencha delivers about 6mg of vitamin C per 100mL — roughly 7% of Japan's dietary reference intake of ...
Updated Jan 2023
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Catechins in Tea: EGCG, Types, and What the Research Shows
The astringency in green tea comes mostly from catechins — a group of polyphenols that also carry most of green tea's...
Updated Jan 2023
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Pesticides in Japanese Tea: Regulations, Residues, and Organic Alternatives
Most Japanese teas are grown with pesticides. That is not a secret — it is written into the regulatory framework that...
Updated Jan 2023
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Caffeine in Tea: How It Works and Why It Differs from Coffee
Tea has caffeine. A typical brewed cup lands somewhere between 20 and 70mg depending on the tea type — see the table ...
Updated Jan 2023
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L-Theanine in Tea: What It Is and Why It Matters
The umami in a bowl of Gyokuro — that savory, brothy sweetness that settles on the tongue before the bitterness arriv...
Updated Jan 2023
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Green Tea Ingredients: Nutrients and Compounds Explained
Explore the health benefits of green tea ingredients, from amino acids to polyphenols, and how they enhance well-bein...
Updated Jan 2023
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What's in Oolong Tea? Caffeine, Catechins, and Nutrition
Discover the ingredients in oolong tea and how they contribute to its flavor, aroma, and color. Oolong tea contains c...
Updated Jan 2023
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Black Tea Ingredients: What's in Your Cup
Black tea is fermented and contains catechin, caffeine, amino acids, and aroma components. Fresh tea leaves contain v...
Updated Jan 2023
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Saponin in Tea: What It Is and What It Does
When you whisk Matcha and that layer of fine foam forms on the surface, saponin is part of why. It is not the only re...
Updated Jan 2023
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