Superseded85% confidenceDecision RuleTime unknown
冰袋总重占保温箱容积的比例应达到1/3至1/2，冰量不足会导致箱内温度快速回升，10L保温箱建议配3-4kg冰袋
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This knowledge claim has been superseded by newer content
冰块和食物空间比例决定保冷效果，冰量应占箱体容积的1/3至1/2，仅放少量冰袋的保温箱实际保冷时间会缩水50%以上Sources
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