Unverified83% confidenceDecision RuleTime unknown
壶口内径＜6cm的窄口壶手无法伸入擦洗，装果汁/奶茶等易残留饮品会滋生异味，此类用途应选广口设计（内径≥8cm）便于洗刷
1
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83%
Confidence
Long-term
Relevance
-
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Unverified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88% 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87% similarUnverified马克杯杯口内径需≥7cm，否则手洗时手无法伸入擦洗，长期使用底部茶垢咖啡渍难清理，尤其内壁带弧度收窄的造型杯要避雷86% 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86% 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86% similar
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