Cha Qi · 茶气

Tea session calculator. Estimate cha qi, caffeine, sleep impact, and TCM nature. Built for gongfu drinkers. Works offline.

Cha Qi · 茶气 is a calculator and notebook for the gongfu cha drinker.

WHAT IT DOES • Cha qi score on Lu Tong's Seven Bowls scale • Caffeine and L-theanine estimate • Sleep forecast — when you can fall asleep by 11pm • TCM nature 性 of the brew: cool, neutral, warm, hot • Qi profile: calm vs focus vs euphoria balance • Goal-driven recommendation: what to brew for the state you want

SIX TABS • Session: pick your tea, vessel, and grams — see the calculation • Goal: set a state ("Bright focus", "Soft relaxation", "Deep dive", "Cha zui euphoria") and get a brew plan • Timer: gongfu infusion timer • Diary: log sessions, taste notes, mood • A/B: compare two brews side by side • Teas: library of 40 known varieties + your personal stash

PRIVACY All your data — library, diary, notes — stays on your device. Nothing is uploaded.

LANGUAGES Russian, English, Chinese (Simplified) with locale-aware tea names.

OFFLINE Works without internet.