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黑油是什么

“黑油”是指從飯店、餐館陰溝中撈出來的泔腳油,其經(jīng)過加堿后用土爐熬出來,搖身一變就成了所謂的“精煉植物油”。泔腳油由于已經(jīng)使用過,油質已經(jīng)被徹底破壞,也就上不了戰(zhàn)場,而且這些回收的油中混有食物及其他殘渣。經(jīng)大火熬上4~5小時,撈去表面的懸浮物,濾掉底層的殘渣和去除水分,竟然能美其名曰“精煉植物油”。殊不知,這種油的酸價、過氧化值和水分等指標,均超過國家規(guī)定的衛(wèi)生標準數(shù)十倍。更糟的是,這種油經(jīng)加堿和長時間大火熬煮后,其中不少成分已發(fā)生聚合轉變,形成多種致癌物質,黑油危害雖然在短時間尚難察覺,但其潛在危害卻無人能預料。

“黑油”外觀上較正常食用油黏稠或稀薄、混濁,嗅之無正常食用油特有的油香味,只要引起注意,把它揪出來應該不是一件難事,所以碰上黑油時,大可不必購買,不要因價格上的丁點小便宜置身體健康于不顧。
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