Unverified90% confidenceDecision RuleTime unknown
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
1
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90%
Confidence
Long-term
Relevance
-
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Unverified挑选活力判断:翻过来能迅速自行翻身、蟹脚有力挣扎、吐泡沫活跃的存活时间长;轻按蟹腹坚硬饱满说明肉肥,软塌的多为空壳蟹或刚脱壳的'水蟹'83% similarUnverified挑螃蟹按压腹脐鼓硬为膏满肉肥,捏蟹腿根部关节饱满有弹性说明肉厚;掂重量同规格越沉越实。翻身后能迅速翻回、蟹眼受触碰快速缩回的为活力强、耐运输的健康蟹80% similarUnverified所谓'注胶蟹'实为极端案例,但选购梭子蟹/大闸蟹应看活力(触碰迅速反应)、掂重量(同规格越重越肥满)、按蟹脐(母蟹脐部圆满代表膏黄足),空壳蟹提起来轻飘飘79% similarUnverified活蟹判断肥满度看蟹脐(母蟹圆脐、公蟹尖脐)饱满度,翻过来腹部按压硬实为肥;掂重量同规格越沉越好,轻飘飘多为空壳蟹79% similarUnverified预制蟹类首选'活蟹现蒸急冻'工艺,包装内蟹脚完整不脱落、蟹黄凝固饱满;死后再加工的蟹会因蛋白质降解产生组胺,即使冷冻也存在风险78% similar
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