Unverified85% confidenceFactTime unknown
购买干海带时表面白色粉末是甘露醇(正常营养成分),并非发霉或盐分;但若出现黄绿色斑点或明显霉味则应丢弃
1
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85%
Confidence
Long-term
Relevance
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Unverified干海带表面的白色粉末是甘露醇(正常结晶),并非发霉;而绿色、黑绿或发黏则是变质或漂染,应避免购买85% similarUnverified干海带表面的白霜是甘露醇(天然析出物,鲜味来源),不是发霉;发霉是绿色/黑色斑点且有霉味。有白霜的干海带反而是品质好、含糖醇高的表现,不要清洗过度84% similarUnverified表面出现大量白色粉末需辨别:正常晒制腊味可能有盐析出(可擦掉、无异味),但绒毛状/绿色/黑色霉斑或哈喇味的一律丢弃,油脂发黄发黏即已氧化变质不可食用84% similarUnverified不要买颜色发灰白、有明显白色霉斑(非正常盐霜)或酸腐异味的豆豉,正常盐霜可抖落且无异味,霉变则整袋弃用79% similarUnverified选购干海带看表面白霜:适量白色粉末是甘露醇(天然甜味物质)属正常,但发黄、发红或有霉斑是变质,色泽应为墨绿至深褐、叶片完整不碎79% similar
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