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Can You Use Fine Ground Coffee For Cold Brew. The important part here is that you make sure that the grounds are extremely fine. Finally, it's important to note that making passable cold brew with spent coffee grounds could take longer than making cold brew with unspent grounds.

This will make your cold brew more concentrated, and thus less diluted and less bitter. Cold brews should not be brewed with fine ground coffee due to their acidity, which can overextract and produce bitter results. Stir the contents slowly for 30 to 60 seconds.