https://www.caffeineinformer.com/the-caffeine-database https://www.caffeineinformer.com/the-caffeine-database Often, tea has far more. eg Coke Classic 2.8 to

https://www.caffeineinformer.com/the-caffeine-database https://www.caffeineinformer.com/the-caffeine-database Often, tea has far more. eg Coke Classic 2.8 to Black Tea 5.2