Unverified90% confidenceDecision RuleTime unknown
判断解冻虾新鲜度:虾头与虾身连接紧密不脱落、虾壳透亮有光泽、按压肉质回弹紧实;若虾头发黑(黑变病/氧化)、虾身发软松散、有氨水味则已变质,虾头发黑本身无毒但代表不新鲜
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90%
Confidence
Long-term
Relevance
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Unverified判断虾是否新鲜:虾头与虾身连接紧密不脱落、虾壳发亮呈半透明、虾体呈自然弯曲弧度为佳;若虾头发黑(黑变病)说明已开始氧化变质,虾身松软摊直则不新鲜97% similarUnverified新鲜好虾特征:虾头与虾身连接紧密不脱落、虾壳透亮有光泽、虾身有弹性挺直;虾头发黑、身体软塌弯曲、壳肉分离说明已不新鲜或反复冻融94% similarUnverified活虾判断新鲜度:虾头与虾身连接紧密、虾壳青透发亮为佳;虾头发黑、发红或与身体松脱说明已不新鲜或死虾久放,黑头是酪氨酸酶氧化的表现94% similarUnverified虾肉饱满度看'虾头与虾身连接紧密度'和'虾壳颜色':新鲜熟制的小龙虾虾尾卷曲紧实(说明下锅前是活虾),虾尾伸直发软的多为死虾加工,肉质松散有腥味。虾头发黑发暗提示不新鲜或生长环境差92% similarUnverified收到冰鲜虾时注意观察虾头是否发黑、虾身是否松软塌陷,正常冰鲜虾虾壳有光泽、虾身紧实有弹性;虾头大面积发黑说明不新鲜或反复冻融92% similar
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