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Tea reference
Tea reference: tea reference: entry for each tea type (~30: black, green, matcha, oolong, white, pu-erh, rooibos, yerba mate, herbal blends): caffeine per…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
Tea reference: entry for each tea type (~30: black, green, matcha, oolong, white, pu-erh, rooibos, yerba mate, herbal blends): caffeine per cup, steep temperature and time, L-theanine, evidence for the usual claims.
How to use it
Use Tea reference as an orientation page: identify the practical question, inspect the named source base, and follow the scope boundary to the related guide or official service.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | roheline tee kofeiin |
| Finnish | matcha kofeiini |
| Russian | сколько кофеина в зелёном чае |
| English | tea reference |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: Named sources from the original brief: USDA caffeine values (public domain), brewing tables curated. · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
caffeine. is the mg table; herbs. is medicinal.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Caffeine
Continue to the related TempoLife reference.
Herbs
Continue to the related TempoLife reference.
Why it belongs on TempoLife
/caffeine, /herbs.
Frequently asked questions
What does this guide cover?
Tea reference: entry for each tea type (~30: black, green, matcha, oolong, white, pu-erh, rooibos, yerba mate, herbal blends): caffeine per cup, steep temperature and time, L-theanine, evidence for the usual claims.
What evidence does it use?
Named sources from the original brief: USDA caffeine values (public domain), brewing tables curated.
Where does this guide stop?
caffeine. is the mg table; herbs. is medicinal.
Turn the reference into a routine
TempoLife brings food, movement, sleep and everyday health habits into one private place when you want to track what happens next.