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Choose and brew — not another list to read

Two questions. One tea, with brewing parameters and a caffeine tier pulled straight from the constellation's own retail catalog — no invented milligram counts, no medical claims.

01 When do you need the lift?

Why the numbers look like this

Caffeine is a curve, not a number

Every catalog tea is labelled with a qualitative tier — Caffeine-free, Low–medium, Medium, or High — rather than a milligram figure we don't actually have. For the shape of that curve across a full brewing day, here's the field data from the community's own thread.

Caffeine load, gongfu vs. coffee

Estimated total caffeine delivered per day (mg)

Gongfu day (7 gaiwan sessions)
770–1050 mg
Single 350ml drip coffee
~420 mg

Caffeine extraction efficiency by steep length (10-steep total)

Flash steeps (5 sec)
53%
Medium steeps (15 sec)
71%
Long steeps (30 sec)
84%
Field data from Real caffeine loads in a gongfu day — illustrative ranges from one thread's self-experiments, not a lab-verified average.

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