Techniques
Cold Brew vs Iced Coffee: What's the Difference (and Which Is Better)?
June 25, 2026 · 9 min read
Walk into any café and you'll see both on the menu, usually a dollar apart, and nobody explains the difference. Cold brew and iced coffee are two completely different drinks — different brewing method, different flavor, different caffeine. Here's what's actually going on.
The core difference
Iced coffee is hot-brewed coffee poured over ice. Cold brew is coffee steeped in cold water for 12–24 hours, never touching heat. Hot water pulls acids and aromatics quickly; cold water extracts slowly and mostly gets sugars and body. That's why cold brew tastes smoother, sweeter, and less acidic — and iced coffee tastes bright and lively.
Caffeine comparison
| Drink | Brew ratio | Caffeine (12 oz) |
|---|---|---|
| Iced coffee (hot brewed) | 1:16 | 120–170 mg |
| Cold brew (concentrate, diluted 1:1) | 1:8 → 1:16 | 150–210 mg |
| Cold brew (ready-to-drink) | 1:12 | 180–260 mg |
Cold brew usually has more caffeine because it's brewed as a concentrate. If you drink a 12 oz cup of undiluted cold brew, you're getting closer to 300 mg — roughly triple a normal coffee.
How to make cold brew at home
Coarse grind (like sea salt), 1:8 ratio for concentrate. 100 g coffee + 800 g cold filtered water. Stir, cover, refrigerate 16 hours. Strain through a paper filter. Dilute 1:1 with water or milk over ice. It keeps in the fridge for two weeks.
OXO Cold Brew Coffee Maker
The easiest home cold brew system — precise rainmaker lid and stainless mesh.
Toddy Cold Brew System
The original commercial-style cold brewer — makes 32 oz concentrate.
How to make iced coffee at home (the right way)
Don't just brew hot coffee and dump ice in it — the ice melts and you get a watery cup. Use the Japanese iced pour-over method: brew directly onto ice. Standard recipe: 20 g coffee, 150 g hot water for the brew, 150 g ice in the carafe. The ice becomes your water balance and the coffee is bright, clear, and never diluted.
Which should you brew?
If you love smooth, sweet, low-acid coffee and drink it milky — cold brew. If you love bright, complex, single-origin flavor and want the coffee to taste like the beans — Japanese iced. Cold brew is more forgiving with cheap beans; iced pour-over showcases good ones.
New to pour over? Read our step-by-step guide.Shop Ready to upgrade your setup? Check our full reviews.Shop
