Make the Perfect Cold Brew Coffee at Home

The secret: coarse grind, long steep, cold water only. Cold brew extracts coffee's sweet, smooth compounds while leaving behind the bitter acids that heat releases. The result is naturally less acidic and sweeter than hot coffee cooled down.

The Basic Ratio

1:4 concentrate ratio (1 cup coffee to 4 cups water), then dilute 1:1 with water or milk when serving. Or go 1:8 for ready-to-drink strength.

Step-by-Step Method

1. Grind coarse — texture of raw sugar or sea salt. Too fine = bitter, muddy brew.
2. Combine — Mix grounds and cold filtered water in jar or pitcher. Stir to fully saturate.
3. Steep 12-18 hours — Room temp (12-14h) = brighter, fruity notes. Fridge (16-18h) = smoother, chocolatey. Never over 24h or it turns harsh.
4. Filter twice — First through fine mesh strainer, then through coffee filter or cheesecloth to catch sediment.
5. Store concentrate — Lasts 10-14 days refrigerated in sealed container.

Common Mistakes

• Using pre-ground coffee: Goes stale fast. Grind fresh.
• Hot water: Ruins the point — cold brew specifically avoids heat extraction.
• Wrong grind size: Medium or fine = over-extraction and bitterness.

Serving

Dilute concentrate 1:1 with cold water, milk, or oat milk. Serve over ice. Concentrate is strong enough to stay flavorful even as ice melts.

Pro tip: Make ice cubes from leftover cold brew so melting ice doesn't water down your drink. Freeze concentrate in ice cube trays, then add 2-3 cubes to diluted cold brew.