Unverified90% confidenceDecision RuleTime unknown
PU发泡+滚塑一体成型箱体的保温性能远优于EPS泡沫内胆，同容量下24小时保冷可差3-5倍，长途露营/海钓选PU滚塑，短途野餐EPS够用
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90%
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Long-term
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Unverified保冷性能核心是隔热层厚度而非品牌，PU发泡层每增加10mm，保冷时长约延长4-6小时；EPS泡沫填充成本低但保冷力明显弱于PU发泡82% similarUnverified硬质保温箱(EPS/PU发泡)保冷强但笨重占空间，软质保温包(带真空镀铝内衬)轻便可折叠但保冷仅6-12小时，通勤带饭/短途野餐选软包足够80% similarUnverified加热速度≤30秒可即用的机型使用体验明显更好；需预热1-2分钟的机型在需要多次补水或临时清洁时非常影响效率71% similarUnverified湿蒸穿透力优于干热电热垫，但加水加热需要预热时间较长，不适合追求即开即用的场景71% similarUnverified大水箱意味着更长续航但也意味着加热时间更长（大水箱冷启动常需5-8分钟）和整机更重，即用即走的碎片清洁场景反而应选小水箱快速加热机型70% similar
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