Unverified85% confidenceTradeoffTime unknown
冷冻虾选带冰衣（镀冰）产品可防氧化保鲜，但过厚冰衣（超过重量15-20%）会虚增净重，购买时应关注净含量而非毛重，正规产品会标注去冰净重
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85%
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Long-term
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Unverified冷冻海鲜的冰衣（镀冰层）会计入毛重，标称500g的冻虾实际净虾肉可能仅350-400g，选购时应关注净含量或去冰后重量，冰衣占比超过20%属过度镀冰87% similarUnverified冰衣（镀冰）冷冻虾的净重需扣除包冰，正规产品包冰率应≤20%，标注'净含量'而非'含冰总重'；包冰过厚（虾仁被厚冰壳完全包裹）是隐性缺斤短两87% similarUnverified活虾鲜度最佳但价格高且运输易死，冰鲜虾性价比高但需当天吃完，速冻带冰衣虾保质期长但冰衣重量可占15-30%需注意实际净重84% similarUnverified冻虾看'冰衣'比例，优质产品冰衣占比＜10%，部分低价礼盒冰衣可达20-30%，选净含量（去冰重）标注清晰的，单冻（IQF）工艺比块冻保鲜和解冻体验更好84% similarUnverified冻虾选带冰衣但冰衣薄的，冰衣包冰量应≤20%；反复冻融的虾会有大量白色冰渣、虾体发白干瘪，营养和口感损失严重83% similar
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