Cold brew is extracted with cold water over 12–24 hours — gentle, low acidity, sweet. Iced coffee is hot-brewed coffee chilled over ice — more intense, higher acidity. Both are cold, the difference lies in the brewing process.

What is the difference between cold brew and iced coffee?

Cold brew is extracted with cold water over 12–24 hours — gentle, low acidity, sweet. Iced coffee is hot-brewed coffee chilled over ice — more intense, higher acidity. Both are cold, the difference lies in the brewing process.

Why that is

The water temperature during extraction fundamentally changes which compounds are dissolved from the coffee. Hot water extracts quickly and aggressively — including acids and bitter compounds. Cold water extracts more slowly and selectively — it primarily dissolves sugars, chocolate, and caramel notes, while many acids and bitter compounds remain in the coffee grounds.

Cold Brew:

• Cold water, 12–24 hour steep time.
• Result: Gentle, sweet, low acidity, full-bodied.
• Contains up to 67% less chlorogenic acid than hot-brewed coffee.
• Is brewed as a concentrate and diluted before drinking.
• Flavor: Chocolate, caramel, nut, little fruit.
• Keeps well in the fridge (7–14 days).

Iced Coffee:

• Hot-brewed (pour-over, espresso, or filter coffee), then quickly cooled down over ice.
• Result: Intense, fruity, acidic — basically regular coffee, just cold.
• Tastes more vibrant and complex than cold brew, but also has more acidity.
• Consumed immediately, not stored.
• Flavor: Fruit, florals, acidity — similar to the hot coffee.
• Method: “Japanese Iced Coffee” — brewed directly over ice, resulting in instant cooling without being excessively watered down.

When to choose what?

• Cold brew, if you like it gentle, sweet, and uncomplicated. Ideal for hot days, for milk drinks, or for people who don’t tolerate acidity well.
• Iced coffee, if you want to experience the full flavor profile of the coffee even when cold — especially with light, fruity single origins.

Both methods are distinct and good — it’s not about better or worse, but about preference.

In practice at Green Wall Coffee

At Sophienstraße 27, we offer both during the summer: cold brew as a ready-made concentrate to dilute, and Japanese iced coffee as a pour-over directly onto ice. For guests who are undecided, I gladly give them a taste of both — the difference surprises almost everyone.

Related questions

• How to make cold brew at home?
• How long does cold brew need to steep?
• What is nitro cold brew?

Come visit us at Sophienstraße 27 — Mon–Fri 8am–5pm, Sat 10am–5pm.