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如何分辨好牛奶与差牛奶
更新时间: 2020-10-13 00:00:00  

1、好牛奶在包装上都有巴氏杀菌的标识,生产日期和保质期印刷清楚并在有效期内;

2、开封后,正常的牛乳应呈均匀一致的乳白色,稍带微黄,相反不好的牛奶则呈现红色、绿色或黄色等异常色泽;

3、将牛奶与水掺在一起,略微搅拌,如果出现固状物,则表明该牛奶不新鲜;

4、好的牛奶有一定的粘黏性,把牛奶滴—滴在指甲上,如果成球状停在指甲上,质量上乘;如果落在指甲上就流散,则不是好牛奶;

5、在盛水的碗内滴几滴鲜奶,奶汁凝固沉底的为好奶,浮散的则质量不佳,不建议饮用;

6、煮沸牛奶后,若在表面有奶皮乳脂的是好奶;表面出现豆腐花状的是变质奶。

关键词: 如何 分辨 牛奶

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