Cold brew and iced coffee look almost the same in a glass. Both come cold, both come over ice, and both get ordered by people who want something refreshing. The difference is how the coffee is made, and that changes the taste, the acidity and, sometimes, the caffeine.
How each one is made
Iced coffee is brewed hot in the usual way, then cooled and poured over ice. The whole process takes minutes.
Cold brew skips the heat. Coarsely ground coffee steeps in cold or room-temperature water for roughly 12 to 24 hours, and then the grounds are filtered out. Patience is the main ingredient.
Taste and acidity
Heat pulls out more of the bright, sharp compounds that give hot coffee much of its snap. Cold brewing extracts less of them, so the result usually tastes smoother, sweeter and less bitter. Iced coffee keeps more of the familiar hot-coffee edge, which some people prefer.
Caffeine
Cold brew is often stronger, but it isn’t automatic. Cafés typically use more grounds per cup for cold brew, and a long steep does draw out caffeine. The amount of coffee in the cup matters more than the name on the menu, so if strength is what you’re after, ask how the drink is made.
Cost and effort
Cold brew needs a day of steeping, and that time shows up on the bill. Iced coffee is quick to make, which is why it’s usually the cheaper option.
Which one should you order?
- Pick cold brew for a smooth, low-acid drink you can sip slowly.
- Pick iced coffee for a brighter flavour and a quick fix.
- Brew cold coffee at home in a batch. It keeps in the fridge for several days, so a glass is always ready.
