What is another word for makes sour?
Pronunciation: [mˌe͡ɪks sˈa͡ʊ͡ə] (IPA) 
The phrase "makes sour" can be translated into a host of synonyms. For instance, you could describe the action as "spoiling" or "turning." Alternately, you might use words like "acidifying," "fermenting," or "curdling." Other options might include "tarting up," "souring up," "saddening," or even "embittering." Regardless of which synonym you choose, the overall meaning stays the same: the item in question is no longer desirable due to its sour flavor. This could apply to anything from a glass of milk to a romantic relationship, and the right synonym can help you effectively communicate the sourness of an experience or object to your audience.
