This step-by-step guide walks you through two proven recipes, ready-to-drink and concentrate, plus smart tips on grind, time, and storage. Best of all, it’s built around our favorite roast for warm-weather sips: Stepside Decaf. Low acid, big flavor, and no caffeine buzz, so you can cruise all day and still get sleep.

TL;DR (Quick Specs)

Ratios (volume-based for home brewing):

• Ready-to-drink: ½ cup coarse grounds + 4 cups cold water
• Concentrate: 1 cup coarse grounds + 4 cups cold water (dilute 1:1 to serve)

Steep Time:

• Fridge: 12–14 hours (smooth, no bitterness) 
• Room temp: ~12–15 hours, then chill 

Filter: Strain, then paper-filter for clarity 

Storage:

• Concentrate: up to 2 weeks refrigerated (best within 1 week)
• Ready-to-drink: 2–3 days

What You’ll Need

• Coarsely ground coffee (we recommend Stepside Decaf)
• Cold, filtered water
• 1–2 qt mason jar or pitcher with lid
• Fine-mesh strainer and paper filter
• Optional: a scale (for weight ratios like 1:8)

Step-by-Step: Ready-to-Drink Cold Brew (Smooth & Simple)

1. Grind Coarse

Think raw sugar or kosher salt. A finer grind leads to over-extraction and unwanted bitterness.

2. Combine

Add ½ cup coarse coffee to 4 cups cold water. Stir to fully saturate. This is about a 1:8 brew ratio.

3. Steep

Let steep in the fridge for 12–14 hours. We prefer the longer end. It yields a smoother, rounder cup that’s still refreshing.

4. Strain Twice

Run through a mesh strainer, then again through a paper coffee filter for a clean, crisp result.

5. Serve

Pour over ice and sip. If it’s too strong, splash in some cold filtered water to lighten it up.

Perfect for: Post-workout cool-downs, early morning drives, or backyard tune-up sessions.

Step-by-Step: Cold Brew Concentrate (Stronger, Built for Mixing)

1. Grind Coarse

Same rule applies—coarse is key for smooth extraction. 

2. Combine

Use 1 cup grounds to 4 cups cold water. Stir to wet thoroughly. (≈1:5–1:6 by weight)

3. Steep

Refrigerate for 12–14 hours or steep at room temp for ~12 hours, then refrigerate. 

4. Strain Twice

Same method: mesh filter first, paper filter second. 

5. Dilute to Serve

Start 1:1 (½ cup concentrate + ½ cup water or milk). Adjust to your taste. 

Perfect for: Road trips, camping coolers, or afternoon caffeine resets (Stepside Decaf won’t keep you up at night).

Why Cold Brew Works So Well in the Heat

Cold brew isn’t just trendy, it’s practical. Without heat, you get fewer bitter acids and a smoother, less acidic flavor. And when it’s 90+ in the garage, there’s no need to fire up the kettle or espresso machine.

You’re also in control: adjust ratio, strength, and dilution to match the moment. Need something mellow while detailing the car? Ready-to-drink. Want something punchier before a long haul? Hit the concentrate.

Grind, Time, and Temperature: What Affects Flavor

• Grind size: Too fine and you get bitter sludge. Go coarse to give your brew room to steep without turning harsh. 
• Time & temperature: Cold brew hits peak extraction by 10–12 hours in the fridge or ~6 hours at room temp. Steeping longer can deepen the flavor, which is why we recommend ~12 hours. 

Straining: Why Double is Better

You could strain once, but you’ll notice the difference with a paper filter. Cleaner taste, longer fridge life, and zero grit at the bottom of your glass.

Storage & Shelf Life

• Cold brew concentrate: up to 2 weeks sealed and refrigerated (tastes best in the first 7–10 days).
• Ready-to-drink: 2–3 days before flavor fades.

Don’t leave it out—always refrigerate.

Can I Use Regular Coffee Beans?

Absolutely. Cold brew doesn’t need special beans. But freshly ground and medium roasts tend to bring out balanced, sweet flavors when cold. We like our Stepside Decaf or Kustom Blend for smooth flavor, zero bitterness, and summer-friendly sipping. 

FAQ

What is the ratio for cold brew coffee?

½ cup grounds + 4 cups water for ready-to-drink.
1 cup grounds + 4 cups water for concentrate.

How to make a cold brew coffee?

Grind coarse. Add to water. Steep 12–14 hours. Double-strain. Serve over ice.

Can I make cold brew from regular coffee?

Yes. Use what you have, but grind fresh and go medium roast for best results.

What not to do when making cold brew?

• Don’t grind too fine – causes bitterness
• Don’t skip the second filter – causes grit
• Don’t store at room temp – refrigerate immediately
• Don’t under-steep – aim for 12–14 hours

Brewed for the Heat: Try It With Stepside Decaf

Crisp, smooth, and low-acid—Stepside Decaf was made for Florida mornings and humid summer days. No caffeine, all flavor, and perfect over ice. Try the concentrate version for an afternoon cold brew latte or pour the ready-to-drink over ice with a twist of orange peel.

• Shop Stepside Decaf
• Shop Kustom Blend