Unverified90% confidenceDecision RuleTime unknown
活鲜贝类到货后需闻味+看反应：生蚝壳应紧闭或碰触后缓慢收缩，扇贝、蛤蜊张口后触碰不闭合的已死亡需丢弃，有明显腥臭味整批可疑
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified扇贝、生蚝等贝类选购时应选壳口紧闭或触碰后立即闭合的，长开不合说明已死亡，死贝类繁殖细菌极快，加热也不建议食用82% similarUnverified贝类（蛤蜊、生蚝、扇贝）活体开口后触碰会迅速闭合为活；常开不闭、有异味、外壳破损的已死，死后贝类蛋白质快速分解产生组胺，易引起食物中毒，绝不可食用78% similarUnverified整条带内脏的秋刀鱼保鲜期更短，但内脏（鱼胆的微苦）正是盐烤秋刀鱼风味精髓所在；若买回后不能当天食用，应选已去脏处理的以防腹部先腐坏70% similarUnverified判断大闸蟹活力：翻转蟹身后能在3秒内快速翻正、吐泡沫密集有力、蟹脚挣扎有劲的为壮蟹；反之为存放过久或即将死亡的蟹，死蟹产生组胺不可食用69% similarUnverified鲜活形式口感最佳但运输损耗大、单价高且死蟹死虾产生异味风险；冷冻形式价格低、损耗可控但口感下降，虾蟹类冷冻后甜度和弹性明显减弱69% similar
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