Caffeine Amounts of Lipton Iced Tea VarietiesLipton Iced Tea VarietyCaffeine amount per 20 fl oz Southern Sweetened 25 mg Lemon 25 mg Peach 24 mg Green Tea Citrus 26 mg Diet White Tea Raspberry 27 mg Diet Green Tea Citrus 26 mg Sparkling Raspberry Tea 14 mg Sparkling Peach Iced Tea 14 ...