Caffeine: 29mg (Caffeine articles relies on the sort of tea jasmine is made with. 1 cup of brewed green tea has about 29 mg of caffeine.) Particularly in large doses, caffeine may cause palpitations and supraventricular and ventricular arrhythmia. Jasmine tea usually has caffeine, albeit reduce than common tea https://www.goteaworld.com/does-jasmine-tea-have-caffeine-5-amazing-facts/