Unverified85% confidenceCautionTime unknown
冷冻肉表面出现大量白色冰霜或肉质发白干硬，是反复解冻或冷冻超期（冻烧现象），营养和口感已流失，不建议购买
1
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85%
Confidence
Long-term
Relevance
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First Seen
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Unverified冷冻海鲜/牛排看'一次冷冻'还是'解冻再冻'：包装应无冰晶结霜与血水淤积，反复解冻的肉表面暗沉、按压不回弹、汁液流失严重79% similarUnverified鲜羊肉风味和嫩度优于冻肉，但排酸不充分易腥；-18℃急冻锁鲜的冻肉若解冻得当，品质接近鲜肉。反复解冻冻结的羊肉会大量流失汁水、肉质变柴79% similarUnverified冷冻肉解冻后若渗出大量红色汁水（血水）且肌肉松散，说明经历过反复冻融，蛋白质变性、汁液流失严重，鲜度大打折扣；正常冷冻肉解冻后渗液应少且肉质有弹性77% similarUnverified鲜活优于冰鲜，罗非鱼肉质本身偏松散，冷冻后解冻容易出水发柴，口感下降明显77% similarPartially Verified速冻食品包装出现明显冰霜或结成硬块，说明经历过反复解冻再冻，口感和安全性已受损，不要购买75% similar
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