Cold Brew Coffee Recipe: The Easiest Method That Actually Works

The best cold brew coffee recipe: combine 1 cup coarse-ground coffee with 8 cups cold water, steep in the fridge for 12–24 hours, then strain. That’s it.

Cold brew is the simplest brewing method in a home barista’s arsenal — no heat, no pressure, no technique required. Just coffee, water, time, and a strainer. The result is a smooth, naturally sweet concentrate with less acidity than any hot-brew method.

Cold Brew Coffee Recipe (Regular Strength)

Ratio: 1:8 (1 part coffee to 8 parts water) Steep time: 12–18 hours in the refrigerator Yield: About 8 cups (adjustable)

Ingredients

• 1 cup (85g) coarsely ground coffee
• 8 cups (1.9L) cold filtered water

Equipment

• Large jar, pitcher, or dedicated cold brew maker
• Fine mesh strainer or cheesecloth
• Coffee grinder (burr grinder preferred)

Instructions

1. Grind your coffee coarsely — similar to raw sugar texture. Fine grounds make cold brew bitter and muddy. If you buy pre-ground, use a coarse grind.
2. Combine coffee and water in a large jar or pitcher. Stir gently to ensure all grounds are saturated.
3. Cover and refrigerate for 12–18 hours. Don’t steep at room temperature — the fridge keeps it clean and safe.
4. Strain twice. Pour through a fine mesh strainer first to remove large grounds, then through a coffee filter or cheesecloth to catch fines. This takes 5–10 minutes — don’t rush it.
5. Store and serve. Transfer to a clean jar or pitcher. Keeps in the fridge for up to 2 weeks.

To serve: Pour over ice. Dilute with water or milk to taste — start at 1:1 if your brew is strong.

Cold Brew Concentrate Recipe (Stronger, More Versatile)

If you want a more versatile product — one you can dilute precisely, add to lattes, or use in recipes — make a concentrate.

Ratio: 1:4 (1 part coffee to 4 parts water) Steep time: 16–24 hours

Ingredients

• 1 cup (85g) coarsely ground coffee
• 4 cups (950ml) cold filtered water

Same process as above. When serving, dilute 1:1 with water (or milk, oat milk, etc.) to approximate regular cold brew strength.

Concentrate shelf life: Up to 2 weeks refrigerated. Diluted servings: drink the same day.

Getting the Ratio Right

For a deeper dive on ratios and how they compare to other brewing methods, see our Cold Brew Ratio Guide.

Cold Brew Recipe Variations

Vanilla Cold Brew

Add 1 teaspoon of pure vanilla extract and 2 tablespoons of simple syrup to 2 cups of finished cold brew. Stir. Serve over ice with oat milk.

Cold Brew Latte

Mix 1 part cold brew concentrate with 1 part whole milk (or oat milk). Pour over ice. Add a pump of simple syrup if desired.

Nitro-Style Cold Brew at Home

Pour cold brew concentrate into a whipped cream dispenser (iSi siphon). Charge with one N₂O cartridge. Dispense slowly over ice. The result mimics nitro cold brew — cascading bubbles, creamy texture.

Cinnamon Cold Brew

Add 1 cinnamon stick to your grounds before steeping. Remove with the grounds when straining. Adds warmth without sweetness.

Tips for Better Cold Brew

Use coarse-ground coffee. This is the single most important variable. Fine grounds steep too fast, extract bitter compounds, and clog your strainer. Coarse is key.

Filter twice. One pass through a mesh strainer leaves too many fines. The second pass through a paper filter or cheesecloth eliminates the sludgy layer at the bottom of the glass.

Use filtered water. Cold brew is mostly water. Tap water with chlorine or off-flavors will affect the taste. Filtered or bottled water makes a noticeable difference.

Don’t rush the steep. Under 10 hours produces weak, underdeveloped cold brew. 12–18 hours is the sweet spot. 24 hours maximum — longer can introduce unpleasant bitter notes.

Cold steep, always. Room-temperature steeping speeds up extraction but also grows bacteria faster. Fridge steeping is safe and produces cleaner flavor.

What Coffee to Use

Medium or medium-dark roast works best for cold brew. The longer steep time brings out sweetness and chocolate notes in medium roasts beautifully. Very light roasts can taste thin and sour. Very dark roasts can turn bitter.

Single-origin Ethiopian or Colombian beans make a sweeter, fruitier cold brew. A good espresso blend makes a chocolatey, bold one.

For more on bean selection, see our Arabica vs Robusta guide and how long coffee beans last.

Common Cold Brew Mistakes

Grinding too fine. The #1 mistake. Produces bitter, muddy cold brew that’s hard to filter.

Not straining properly. Skipping the second fine-filter step leaves sediment that settles and turns gritty.

Using boiling or hot water. Cold brew is cold-extracted by definition. Hot water defeats the purpose and loses the low-acid character.

Steeping too long. 24 hours is the maximum. Beyond that, over-extraction produces astringency.

Making too little. Cold brew keeps for 2 weeks. Make a big batch — you’ll drink it faster than you expect.

Frequently Asked Questions

How long does cold brew last in the fridge? Regular-strength cold brew: up to 2 weeks. Concentrate: up to 2 weeks undiluted. Once diluted, drink within 2 days.

Can I make cold brew without a special maker? Yes — a mason jar and fine mesh strainer are all you need. Dedicated cold brew makers (like Toddy or OXO) are convenient but not required.

Is cold brew stronger than iced coffee? Cold brew concentrate is significantly stronger. Regular-strength cold brew (1:8 ratio) has roughly similar caffeine content to drip coffee, but cold brew is smoother and less acidic.

Why is my cold brew bitter? The most common causes: grind too fine, steeped too long (over 24 hours), or low-quality beans. Try a coarser grind and shorter steep time.

Can I make cold brew with hot water? That’s iced coffee, not cold brew. Hot water extracts differently — cold brew’s defining characteristic is its smooth, low-acid profile from cold extraction.

What’s the difference between cold brew and iced coffee? Iced coffee is hot-brewed coffee poured over ice. Cold brew is never heated — it’s steeped cold, which produces a different flavor profile: smoother, sweeter, less acidic.