Unverified85% confidenceDecision RuleTime unknown
冷冻虾看头黑与否判断新鲜度：虾头发黑（黑变病）说明储运温度不稳定或存放过久，虽不一定有害但品质下降；同时虾体应透亮有弹性、无氨水味，解冻后出水少者为反复冻融次数少的优质品
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
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