Caffeine tracker
Your logged bowls against a daily cap you choose. Estimates for general interest, not medical advice.
Caffeine
Nothing logged today. Log a bowl in the journal and it lands here.
Counts bowls logged since midnight on this device, so it resets each morning rather than losing anything. Estimates only, based on about 34 mg of caffeine per gram of matcha. Not medical advice.
Questions
About 68 mg, based on roughly 34 mg of caffeine per gram of matcha. That is a mid-range published estimate; the real figure varies with the cultivar, the harvest and how much of the bowl you drink.
A standard 2 g bowl is around 68 mg against roughly 95 mg for a mug of drip coffee, so a bowl is closer to two thirds of a coffee than to an espresso.
L-theanine is the amino acid shade-grown tea is rich in, and it is why matcha reads as calm alertness rather than a spike. A 2 g bowl carries roughly 50 mg.
At midnight on your own device. The tracker counts the bowls you have logged since then, so a bowl at 23:50 and one at 00:10 belong to different days. Nothing is deleted at the reset; the journal keeps every entry.