Unverified75% confidenceDecision RuleTime unknown
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
1
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75%
Confidence
Long-term
Relevance
-
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Unverified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95% similarUnverified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92% 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杯口内径小于5cm的水壶不建议长期使用，手伸不进无法彻底刷洗杯底，宽口设计（内径≥5.5cm）清洗更彻底可防内壁污垢91% similarUnverified宽口大开口（≥5cm直径）水壶清洗时手或洗杯刷可完全伸入，比窄口壶更易彻底清洁，但便携直饮时易呛水泼溅，需搭配二级小口盖设计平衡91% similar
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