Does anyone know how many mg of caffeine in one cup of this?

Dear Citizen, Thank you for your interest in The Republic of Tea. This Tea contains approximately half the amount of caffeine compared to a similar-sized cup of coffee, so about 55mg of caffeine per serving. Be Well, Amanda Minister of Citizen Services

I suppose that would depend on how strong u like your tea. The can has 36 tea bags in it so that would be 36 single servings unless u use more than 1 bag per serving, which would make for a much stronger tea. Very good tea though. A treat for sure!