Question: how much caffeine is in a starbucks iced black tea?
Answer: As a matter of fact, these are Starbucks only caffeine free iced tea options. For comparison purposes, here's the caffeine content for all grande tea drinks: black tea – 25-30 mg.; green tea – 25-30 mg.; passion tea – 0 mg.; white tea – 20-25 mg; matcha – 80 mg.; turmeric golden blend – 0 mg.