Unverified85% confidenceDecision RuleTime unknown
杯口内径≥5cm的宽口杯身可整只手伸入擦洗内壁，窄口杯（＜4cm）长期使用底部易残留茶垢奶垢，必须用杯刷才能清洁到位
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85%
Confidence
Long-term
Relevance
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Unverified杯口内径小于4cm的窄口保温杯，手伸不进去、普通杯刷难到底，长期易残留茶渍奶垢，选口径≥5cm的宽口款更易清洁95% similarUnverified杯口内径＜4cm的窄口保温杯手伸不进去，无法用手擦洗内壁，长期使用易积茶垢咖啡渍；追求清洗便利选杯口内径≥5cm的广口设计95% similarUnverified杯口内径≥5cm（大口设计）才方便手伸进去或用普通瓶刷彻底清洗底部，小口窄颈杯长期只能倒水冲洗，容易在底部积累茶垢水垢95% similarUnverified杯口内径小于4cm的窄口轻量杯手伸不进去，长期使用会在杯底积垢，装奶茶果汁等含糖饮料时优先选杯口≥5cm的宽口设计便于刷洗92% similarUnverified杯盖可完全拆解、杯口内径≥5cm的宽口设计清洁便利性最佳，手能伸入擦洗，窄口深杯需专用刷且死角易积垢发霉91% similar
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