问题 问答题 简答题

麦汁煮沸过程要做哪些质量检查?

答案

参考答案:

麦汁煮沸过程要做的质量检查有:

①检查煮沸麦汁pH,一般应为5.2~5.4,蛋白质凝聚良好;

②检查酒花质量,按时按量添加酒花,以保证酒花的添加效果;

③检查酸和助剂质量,按时按量添加;

④及时检测满锅麦汁浓度,煮沸终了前20min以后,至少检测两次麦汁浓度,煮沸结束时,必须保证定型麦汁浓度符合工艺要求;

⑤检查、控制蒸汽压力,保证煮沸效果;

⑥检查煮沸麦汁质量,取一杯煮沸1hr后的麦汁,迎光检视,麦汁应清亮透明,很快有大片的絮状蛋白质凝固物沉于杯底。

阅读理解

阅读理解,判断正误。

      

     Sally was fourteen. She studied in a middle school. She liked dancing and singing and spent a lot of

 time on them. But she hated math and even decided to give it up. Her father was anxious about it.

      It was Sunday. Sally's father gave a call to his sister who taught math in another school. He hoped she 

 would come and tell his daughter how to learn math. The woman came and said, "You are a clever girl,

 Sally. I'm sure you will soon learn math well if you do your best. "

     "I'm afraid I can't. Aunt," said Sally, "Girls can't be good at math. "

     "I don't think so," said the woman. "I was good at it when I was a girl. You must do more exercises and

  try different ways to practice doing math problems until you work them out or at least understand them

 better. Here is a math problem. Please think it over and see if you can work it out. "

      "OK," said the girl, "Let me try. "

      About an hour later, Sally took the. exercise book to her aunt and said, "I've tried several times and

 worked out the problem at last. "

      "Well done!" her aunt looked at her answer and said happily, "Now you see, math is not as difficult as

  you thought. "

( ) 1. Sally tried her best to learn math but  could not learn it well.

(     ) 2. Sally spent much more time in singing and dancing than in learning math.

(     ) 3. Her aunt didn't think that girls could  be good at math.

(     ) 4. The father asked his sister to teach his  daughter how to learn math.

(     ) 5. Sally worked out the problem at last.

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