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全麦粉如何鉴别
更新时间: 2020-09-15 00:00:00  

1、看小麦粉的色泽和组织状态。优质小麦粉色泽呈白色或微黄色,不发暗,无杂质,无粗粒感,无虫子和结块,置手中紧捏后放开不成团。浓质、劣质小麦粉色泽暗淡,灰白或深黄色。手指捻捏时有粗粒感,生虫,有杂质,有结块,手捏成团。过量添加增白剂,粉色呈灰白色;

2、闻小麦粉气味。手中取少量小麦粉,用嘴哈气使之稍热后嗅味。为了增加气味,也可将小麦粉放人有塞的瓶中,加人60℃热水,紧塞片刻,然后将水倒出嗅其气味。优质麦粉具有面粉的正常气味,无异味。微有异味,有霉臭味、煤油味及其他异味的为次质、劣质小麦粉;

3、用手摸取面粉时,手心有较大的凉爽感,握紧时成团,久而不散则为水分过高;

4、尝小麦粉的味道。取少许小麦粉细嚼,可将样品加水煮沸后尝之。优质小麦粉味道可口,淡而微甜,没有发酸、刺喉、发苦、发甜及外来滋味,咀嚼时没有砂。淡而乏味,微有异味,咀嚼时有砂声,有刺喉感的为次质、劣质小麦粉。

关键词: 如何 鉴别

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