How Long Does Cold Brew Coffee Last?

Marlin Dariel

If you’re a coffee lover like me, then chances are you’ve tried cold brew coffee at some point. It’s a refreshingly smooth and chilled beverage that packs a flavorful punch. But what happens when you make a big batch of cold brew and can’t finish it all in one day? How long can you keep it in the fridge before it goes bad? In this article, we’ll dive into the shelf life of cold brew coffee, so you can enjoy your favorite brew for as long as possible.


Welcome to our comprehensive guide on how long cold brew coffee is good for! In this article, we will cover everything you need to know about the shelf life of cold brew coffee, including what it is, why it’s popular, how to make it, and how long you can safely enjoy it. So grab a cup of joe and let’s dive in!

What Is Cold Brew Coffee?

Cold brew coffee is a brewing method that involves steeping coffee grounds in cold or room temperature water for an extended period. Unlike traditional hot brewing methods, cold brew coffee is not exposed to hot water and is instead brewed slowly over time. This results in a smooth and less acidic coffee concentrate that can be enjoyed over ice or diluted with water or milk.

Why Is Cold Brew Coffee Popular?

There are several reasons why cold brew coffee has gained popularity in recent years:

  • Smooth and Less Acidic Flavor: The slow brewing process extracts fewer bitter and acidic compounds, resulting in a milder and less acidic taste.
  • Lower Acidity: Cold brew coffee has significantly lower acidity compared to hot brewed coffee, making it gentler on the stomach.
  • Convenience: Cold brew coffee can be prepared in advance and stored in the refrigerator, allowing you to enjoy a refreshing cup of coffee anytime without the need for hot water.
  • Versatility: Cold brew coffee concentrate can be used to create various coffee beverages such as iced coffee, lattes, and even coffee cocktails.
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How to Make Cold Brew Coffee

Making cold brew coffee is a relatively simple process. Here’s a step-by-step guide:

What You’ll Need:

  • Coffee beans or grounds
  • Water (filtered or mineral water is recommended)
  • A large container or mason jar
  • Coffee filter or cheesecloth


  1. Coarsely grind your coffee beans if using whole beans. For a standard ratio, use 1 cup of coffee for every 4 cups of water.
  2. Place the coffee grounds in the container or mason jar.
  3. Add the water to the container, ensuring that all the coffee grounds are properly saturated.
  4. Stir gently to make sure the coffee grounds are evenly distributed.
  5. Cover the container and let the mixture steep in the refrigerator for at least 12 to 24 hours.
  6. After steeping, strain the cold brew coffee concentrate using a coffee filter or cheesecloth to remove the grounds.
  7. Your cold brew coffee concentrate is now ready to enjoy!

How Long Is Cold Brew Coffee Good For?

Now, let’s address the important question of how long cold brew coffee is good for. The shelf life of cold brew coffee depends on several factors, including how it is stored and whether it is diluted or not.

Unopened Cold Brew Concentrate

If you have prepared a concentrated cold brew coffee that has not been diluted with water or milk, it can typically be stored in the refrigerator for up to two weeks. However, for the best taste and quality, it is recommended to consume it within the first week.

Diluted Cold Brew Coffee

If you have already diluted your cold brew concentrate with water or milk, the shelf life will be shorter. Diluted cold brew coffee should be consumed within 24 to 48 hours for optimal flavor.

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Type of Cold Brew Coffee Storage Duration
Unopened Concentrate Up to two weeks (best within the first week)
Diluted Cold Brew Coffee 24 to 48 hours

Tips for Extending the Shelf Life

To ensure that your cold brew coffee stays fresh for as long as possible, here are some helpful tips:

Store Properly:

Always store your cold brew coffee in a clean, airtight container in the refrigerator. This will help prevent any contamination and maintain the flavor.

Keep It Chilled:

Cold brew coffee should be kept refrigerated at all times to slow down the growth of bacteria. Avoid leaving it at room temperature for an extended period.

Dilute as Needed:

If you have prepared a concentrate, it is best to dilute it only when you are ready to consume. This will help maintain the flavor and freshness of your cold brew coffee.

Advantages of Cold Brew Coffee

Cold brew coffee offers several advantages over traditional hot brewing methods:

  • Smooth and Less Acidic: Cold brew coffee has a smoother and less acidic taste, making it more enjoyable for people with sensitive stomachs or acid reflux.
  • Reduced Bitterness: The slow extraction process minimizes the bitter compounds found in coffee, resulting in a less bitter taste.
  • Convenience: Cold brew coffee can be made in advance and stored in the refrigerator, providing a ready-to-drink coffee option.
  • Customizable Strength: Cold brew coffee concentrate can be diluted to your desired strength, allowing you to personalize your coffee experience.

Disadvantages of Cold Brew Coffee

While cold brew coffee offers many benefits, there are also a few potential downsides to consider:

  • Long Brewing Time: Cold brew coffee requires a longer steeping time compared to hot brewing methods. This means you’ll need to plan ahead if you want to enjoy a fresh batch.
  • Less Potent: Cold brew coffee is generally less potent in terms of caffeine content compared to hot brewed coffee. If you’re seeking a strong caffeine kick, cold brew may not be the best choice.
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In conclusion, cold brew coffee is a delicious and refreshing alternative to hot brewed coffee. With its smooth and less acidic flavor, it has gained popularity among coffee enthusiasts around the world. When stored properly, cold brew coffee can last up to two weeks for unopened concentrate and 24 to 48 hours when diluted. Remember to follow our tips for extending the shelf life and enjoy your cold brew coffee at its best. Cheers to a satisfying cup of cold brew!

FAQs (Frequently Asked Questions)

1. How long can I keep cold brew coffee in the refrigerator?

Cold brew coffee can typically be kept in the refrigerator for up to two weeks. It is important to store it in a clean and airtight container to maintain its freshness. However, after the first week, the flavor may start to degrade, so it is recommended to consume it within the first week for the best taste.

2. Can I leave cold brew coffee at room temperature?

While cold brew coffee does not require refrigeration for brewing, it is not advisable to leave it at room temperature for an extended period. Leaving cold brew coffee at room temperature for more than four hours can promote the growth of bacteria, which can lead to foodborne illnesses. Hence, it is recommended to refrigerate the cold brew coffee as soon as it is ready.

3. Can I freeze cold brew coffee to extend its shelf life?

Yes, you can freeze cold brew coffee to extend its shelf life. Freezing can help preserve the flavor and freshness for a longer duration. Before freezing, divide the cold brew coffee into smaller portions and store them in airtight containers or ice cube trays. Thaw the required portion in the refrigerator overnight before consumption.

4. How can I tell if cold brew coffee has gone bad?

If cold brew coffee has gone bad, you can usually notice it through changes in its aroma, taste, and appearance. It may develop a sour or off-putting smell and taste. Additionally, if you notice any mold growth or cloudiness in the coffee, it is a clear indication that it has spoiled and should be discarded.

5. Can I use expired cold brew coffee in recipes?

Using expired cold brew coffee in recipes is not recommended. Expired coffee may negatively impact the flavor and quality of your dishes. It is always best to use fresh and properly stored cold brew coffee for better results. If you are unsure about the quality of your cold brew coffee, it is safer to discard it and make a fresh batch.

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Marlin Dariel

A seasoned coffee connoisseur, reviews coffee shops, recommends unique places to enjoy a great cup of coffee. "Every coffee bean has an interesting story"


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