Unverified90% confidenceDecision RuleTime unknown
认准包装标注"caffeine-free"而非"decaffeinated"：前者是天然无咖啡因草本，后者是脱咖啡因茶叶仍残留2-5mg咖啡因，敏感人群睡前应选前者
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90%
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Long-term
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Unverified标注'无咖啡因'需区分'caffeine-free'（本身不含）与'decaffeinated'（脱咖啡因处理），纯草本茶（洋甘菊/薰衣草/缬草）天然不含咖啡因，若配方混入绿茶/红茶/白茶则含咖啡因，睡前应避免91% similarUnverified助眠茶必须确认无咖啡因(caffeine-free)：注意「低咖啡因/decaf」仍残留少量咖啡因，标注「naturally caffeine-free/草本茶(tisane)」才真正零咖啡因；含茶叶(绿茶/红茶/白茶)基底的一律含咖啡因，睡前不宜89% similarUnverified标注'无咖啡因(Caffeine-Free)'的纯草本茶(如洋甘菊、柠檬香蜂草)与'低咖啡因(Decaffeinated)'的脱咖啡因绿茶不同，后者仍残留2-5mg咖啡因，敏感人群应选前者88% similarUnverified睡前饮用必须确认「无咖啡因/caffeine-free」而非「低咖啡因/decaf」，脱因茶仍残留约2-5mg咖啡因，且需警惕混拼绿茶/红茶/玛黛茶的助眠茶——这些基底茶本身含咖啡因会抵消助眠效果88% similarUnverified睡前助眠茶应选明确标注'咖啡因游离(caffeine-free)'的草本茶，注意'脱咖啡因(decaf)'仍残留少量咖啡因(约2-5mg/杯)，敏感人群会受影响87% similar
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