Unverified80% confidenceDecision RuleTime unknown
警惕硫熏桂圆：正常桂圆肉呈自然黄褐色至深棕色，硫熏处理的颜色异常鲜亮偏浅黄、有刺鼻酸味；抓一把闻若有明显酸涩化学味应放弃
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80%
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Long-term
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Unverified优质桂圆肉呈半透明琥珀色或深棕，颜色过于金黄鲜亮需警惕硫磺熏制；可闻是否有刺鼻酸味判断二氧化硫残留92% similarUnverified去壳桂圆肉常见硫磺熏白/漂色问题，正常肉色应偏深棕琥珀，颜色异常均匀发白发亮需警惕；煮水后水色浑浊发白或有酸涩味为熏硫信号87% similarUnverified标注'无硫'的去壳桂圆肉颜色偏深褐或暗黄属正常，若颜色异常鲜亮金黄反而需警惕是否真正无硫，购买时注意辨别87% similarUnverified警惕硫磺熏蒸的人参：正常参有天然参香，硫熏参颜色异常发白发亮、有刺鼻酸味，长期食用有害；优质红参应呈半透明角质样、断面无空心87% similarUnverified警惕硫磺熏蒸饮片：过度熏硫的柴胡颜色异常鲜黄发白、有刺激性酸味，正常柴胡为黄棕至棕褐色、气微香。选择标注'无硫加工'或二氧化硫残留检测合格的产品86% similar
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