Unverified85% confidenceCautionTime unknown
不要购买颜色异常雪白、片片均匀、无一丝黄斑的茯苓，天然茯苓因干燥和部位差异会有色差和边角，过度整齐白净往往经过漂白或硫磺处理
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified颜色越白越好看的菊花越可能被硫磺熏制或漂白，天然干燥的优质菊花色泽偏黄且不均匀，不要以外观白亮作为选购标准88% similarUnverified不要买颜色异常雪白、饱满整齐得不自然的去壳核桃仁，可能经过硫磺熏蒸或漂白处理；天然核桃仁颜色深浅不一、表皮有褐色纹路才正常88% similarUnverified颜色异常雪白、大小整齐一致、表面有酸味或刺激性气味的莲子，可能经过双氧水或硫磺漂白，不建议购买；天然莲子应呈微黄或象牙白，颜色略有深浅不一87% similarUnverified颜色越白越好看，但过度洁白往往是硫磺熏制或漂白结果；天然干百合略带黄褐边缘属正常氧化，不影响食用87% similarUnverified不要购买颜色过分乌黑发亮、有刺鼻酸味或硫磺味的韭菜籽，可能经染色或硫熏处理以掩盖陈化86% similar
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