Many people assume coffee contains the highest level of caffeine among daily beverages, but in reality, certain milk teas can contain even more caffeine than a standard cup of coffee. According to sampling surveys by market regulators and third-party testing agencies, some commercially available milk teas—especially those made with strong tea bases or added espresso—can contain 200 to 400 milligrams of caffeine per serving, or even more. In comparison, a standard Americano (about 240 ml) typically contains only 80 to 100 milligrams of caffeine.The caffeine in milk tea primarily comes from tea leaves, such as black, green, or oolong tea. To enhance flavor and provide an energizing effect, some vendors use highly concentrated tea brews or multiple extractions, significantly increasing caffeine levels. Additionally, drinks like ‘coffee milk tea’ or ‘yuenyeung’ often include extra shots of espresso, further boosting total caffeine content.Excessive caffeine intake may lead to palpitations, insomnia, anxiety, and gastrointestinal discomfort—particularly concerning for pregnant women, adolescents, and individuals sensitive to caffeine. Experts advise consumers to check ingredient labels when ordering milk tea, opt for low- or caffeine-free options when possible, and limit daily consumption. Regulators also urge businesses to clearly label caffeine content on their products to ensure consumer awareness and health safety.
许多人认为咖啡是日常饮品中咖啡因含量最高的，但事实上，某些奶茶的咖啡因含量可能远超一杯普通咖啡。根据多地市场监管部门和第三方检测机构的抽样调查，部分市售奶茶（尤其是使用浓茶底或添加浓缩咖啡的款式）每杯咖啡因含量可达200至400毫克，甚至更高。相比之下，一杯标准美式咖啡（约240毫升）通常含有80至100毫克咖啡因。奶茶中的咖啡因主要来源于茶叶，特别是红茶、绿茶或乌龙茶等茶底。一些商家为提升风味和提神效果，会使用高浓度茶汤或多次萃取的茶液，导致咖啡因大幅增加。此外，部分“咖啡奶茶”或“鸳鸯奶茶”还会额外加入浓缩咖啡，进一步推高咖啡因总量。过量摄入咖啡因可能引发心悸、失眠、焦虑、肠胃不适等问题，尤其对孕妇、青少年及咖啡因敏感人群需格外注意。专家建议消费者在选购奶茶时留意成分说明，尽量选择低咖啡因或无咖啡因选项，并控制每日摄入量。同时，监管部门也呼吁商家明确标注饮品中的咖啡因含量，以保障消费者知情权与健康安全。
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