Unverified80% confidenceCautionTime unknown
去壳核桃仁若颜色异常洁白发亮、无自然褐色内膜，可能经过硫磺熏蒸或双氧水漂白，正常核桃仁应为浅黄至浅褐色带天然纹理，不建议购买过白仁
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80%
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Long-term
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Unverified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93% similarUnverified警惕漂白核桃：正常核桃壳呈自然黄褐色且有色差，若整批壳面异常雪白均匀、闻有刺激性气味，可能经硫磺或双氧水漂白，不建议购买90% similarUnverified带壳核桃避免选'漂白核桃'：外壳异常洁白发亮、有刺鼻味的多为双氧水漂白处理，天然核桃壳色泽偏黄褐且纹路自然87% similarUnverified外壳异常洁白发亮、纹路缝隙里也没有杂色的多为漂白处理（用双氧水/工业碱浸泡），天然核桃壳应呈黄褐色带自然斑点。漂白核桃闻起来有淡淡刺激性化学味，砸开后壳内壁常发黑86% similarUnverified颜色越浅越透亮不等于越好，天然桃胶多呈浅琥珀色至深棕色（含少量树皮杂质属正常）；异常晶莹通透且颜色均一的可能经过硫磺熏制或漂白处理85% similar
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