You open your container of yogurt and see that there is a thin layer of water on it. What is that anyway? And do you stir it in or do you pour it off?
The layer of moisture is whey. For some, perhaps better known by the English name 'whey'. It consists mainly of water, hence the transparent color.
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Yes, there are some nutrients in whey. For example, protein, potassium and calcium. It is therefore best to stir it through your yogurt. Do you think that's a dirty idea? Then pour it away, it makes no difference to the taste of your yogurt.
