How Long Does Cold Brew Last Once It's Been Opened?

Once opened, cold brew coffee can last in the refrigerator for about one to two weeks. The longevity of cold brew depends on several factors, including how it is stored and the cleanliness of the equipment used during its preparation. Ideally, cold brew should be kept in an airtight container to minimize exposure to air, which can lead to oxidation and spoilage. The flavor of cold brew may start to change after the first week, becoming more acidic or developing an off taste, although it remains safe to drink. It's essential to note that cold brew can lose its optimal flavor profile sooner if not stored properly. For the best taste, it's recommended to consume cold brew within the first week of opening. If you notice any unusual smell, taste, or appearance, such as mold, it's best to discard it. Keeping the cold brew in the coldest part of your refrigerator can help extend its freshness. Regularly cleaning your brewing and storage equipment is also crucial to prevent any contamination that could shorten the shelf life. By following these guidelines, you can enjoy your cold brew while it retains its rich and smooth flavor.
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Use up cold brew before it goes bad

If your cold brew is nearing its recommended use-by date, there are several ways to ensure it doesn't go to waste. One easy method is to freeze it into ice cubes, which can be used later for iced coffees or blended drinks like smoothies and milkshakes, adding a delightful coffee kick. However, if you prefer to use it up rather than save it, you can get inventive by incorporating cold brew into various foods and drinks.

Leftover cold brew is ideal for creating classic desserts such as tiramisu. You can also mix it into baked goods, particularly chocolate recipes—blend it into cake or brownie batter, or incorporate it into frosting. Cold brew serves as an excellent base for homemade coffee ice cream, infusing it with a rich coffee flavor. It can also be an unexpected ingredient in savory dishes; try using it in marinades for meats or stirring it into sauces, chilis, and stews to enhance the flavor with a hint of bitterness.

Don’t overlook cocktails and mocktails—substitute cold brew in an espresso martini or explore other coffee-centric drinks for a bold twist. Whether you choose to freeze it for later or get creative in the kitchen, there are numerous ways to savor every last drop.

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