Cold brew coffee is smooth, refreshing, and easy to make without special equipment. The coffee grounds steep slowly in cool water, which creates a less bitter drink than many hot brewing methods. Once you prepare a batch, you can keep it in the refrigerator and make a quick iced coffee whenever you want.
This simple method makes a concentrated cold brew that you can dilute with water or milk. It takes only a few minutes to prepare, but the coffee needs time to steep.
What You Need
- 1 cup of coarsely ground coffee
- 4 cups of filtered water
- A large jar or covered pitcher
- A fine mesh strainer
- A paper coffee filter or clean cloth
- A bottle or container for storage
Coarsely ground coffee works best because it is easier to filter and produces a cleaner drink. Fine grounds can make the coffee muddy and may add a harsh taste.
Step 1: Combine the Coffee and Water
Put the coffee grounds in the jar. Add the water slowly, making sure all of the grounds become wet. Stir gently with a spoon. Do not whip the mixture or shake it aggressively, because that can make filtering more difficult.
Cover the jar with its lid or plastic wrap. If you are using a pitcher, make sure it is clean and has enough room for stirring.
Step 2: Let the Coffee Steep
Leave the covered mixture at room temperature for about 12 hours, or place it in the refrigerator for 16 to 18 hours. The longer steeping time in the refrigerator allows the cooler water to extract the flavor gradually.
Avoid steeping for much longer than 18 hours on your first attempt. Extra time does not always make the coffee stronger in a pleasant way. It can create a woody or over-extracted flavor.
Step 3: Strain the Concentrate
Place the fine mesh strainer over a clean bowl or pitcher. Pour the coffee mixture through the strainer to remove the larger grounds. For a smoother result, line the strainer with a paper coffee filter and pour the liquid through it a second time.
Let the liquid drain naturally. Pressing the wet grounds can push fine particles into the coffee and make the final drink cloudy. The filtering process may take several minutes, so be patient.
Step 4: Store It Properly
Transfer the strained coffee concentrate to a clean, covered container and refrigerate it. For the best flavor, use it within one week. If the smell or taste becomes unpleasant, discard it and make a fresh batch.
Step 5: Dilute and Serve
Start with equal parts cold brew concentrate and water. Add ice, then adjust the strength to your taste. For a creamier drink, replace some or all of the water with milk, oat milk, or another milk alternative.
You can also add a small amount of simple syrup. Regular sugar does not dissolve as easily in a cold drink, while simple syrup blends in immediately.
How to Adjust the Flavor
- Too strong: Add more water or milk to the glass.
- Too weak: Use less water when serving, or steep the next batch a little longer.
- Too bitter: Use a coarser grind, shorten the steeping time, or check that the water is not warm.
- Too cloudy: Filter the coffee a second time through a paper filter.
- Not flavorful enough: Try a fresher coffee or change the roast rather than adding many extra grounds.
Frequently Asked Questions
Can I use pre-ground coffee?
Yes, but choose a coarse setting if possible. Very fine pre-ground coffee is harder to filter and can leave a gritty texture.
Should cold brew be made with hot water first?
No. This method uses cool or room-temperature water from start to finish. Using hot water creates a different drink and can increase bitterness.
Is cold brew the same as iced coffee?
No. Iced coffee is usually brewed hot and then cooled over ice. Cold brew is extracted slowly with cool water, so it has a different flavor and texture.
Final Thoughts
Making cold brew at home is mostly a matter of using a coarse grind, keeping the coffee and water in the right proportion, and allowing enough time for the slow extraction. Start with the four-to-one ratio, taste the result, and adjust the strength in the glass. Once the process becomes part of your routine, a jar of homemade cold brew can replace expensive cafe drinks with very little effort.
