Unverified82% confidenceDecision RuleTime unknown
囤货选UHT常温奶时优先大包装利乐砖装（1L）比小盒（250ml）单位性价比高，但开封后需冷藏并3天内喝完，家庭日饮量＜500ml/天不建议开1L装以免浪费
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82%
Confidence
Long-term
Relevance
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Unverified1L大包装UHT奶开封后需冷藏并3-5天内喝完，人少家庭选200-250ml利乐小包分装更防浪费，不必贪1L装的单价优势90% similarUnverified巴氏鲜奶开封后需2-3天内喝完，独居或饮奶量小者买250ml小规格更划算；家庭日饮量大可选950ml-1L装降低单位成本，但避免开封后放置超过3天89% similarUnverified包装规格上，家庭日常饮用选250ml×多支装比1L大盒更卫生（开封后大盒易变质、UHT奶开封后也需3天内喝完并冷藏）；独居或饮用频率低选小规格避免浪费89% similarUnverified包装规格上，开封后的牛奶（含常温奶）都应冷藏并在24-48小时内喝完，饮用慢的单人家庭优先选250ml小盒装避免浪费，饮用快的家庭选1L大包装更划算87% similarUnverified包装规格选择：巴氏奶选950ml-1L需2-3天喝完的家庭装或250ml份装；UHT奶单次尝鲜选200-250ml利乐装，稳定饮用可选整箱250ml×24降低单价87% similar
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