Cold Brew vs Iced Coffee: They're Not the Same Thing

As the weather warms up, "cold coffee" starts showing up everywhere — but cold brew and iced coffee are actually two completely different drinks, made in completely different ways, with different flavour profiles. If you've ever wondered why a cold brew from a cafe tastes smoother (and sometimes more expensive) than an iced long black, here's the difference.

What is iced coffee?

Iced coffee is simple: brew coffee hot, the normal way (espresso, pour-over, whatever your usual method is), then cool it down and pour it over ice. That's it. It's fast, and it uses the same beans and roughly the same process you'd use for a hot cup.

Because it's brewed hot, iced coffee carries the same flavour characteristics as your regular cup — including some of the acidity and bitterness that hot extraction pulls out of the beans. Adding ice dilutes it slightly, which is part of why a well-made iced coffee is usually brewed a little stronger than normal to begin with.

What is cold brew?

Cold brew is a different process entirely. Instead of hot water, coarsely ground coffee is steeped in room-temperature or cold water for an extended period — usually 12 to 24 hours. No heat is involved at any point.

That long, slow steep changes what actually gets extracted from the grounds. Hot water pulls out oils and acids quickly; cold water pulls them out much more slowly and selectively, which is why cold brew tends to taste noticeably smoother, sweeter, and less acidic than its hot-brewed counterpart. It's also usually served as a concentrate, diluted with water or milk to taste.

Why they taste so different

The temperature of the water is doing all the work here. Heat accelerates extraction — it's efficient, but it also pulls out more of the bitter and acidic compounds in coffee along with the good stuff. Cold water is a much gentler solvent, so it takes far longer to extract flavour, but what it does pull out skews toward the smoother, sweeter compounds. That's the whole reason a 24-hour steep exists — it's trading speed for a different flavour result, not just a colder one.

This also means cold brew and iced coffee aren't good stand-ins for each other. Pouring your normal espresso over ice will never taste like cold brew, no matter how good the beans are — and brewing a proper cold brew takes planning, not a five-minute fix.

Which one should you make at home?

• Iced coffee is the better choice if you want your usual coffee, cold, right now. Brew it a little stronger than normal to account for the ice melting.
• Cold brew is worth the wait if you want a smoother, naturally sweeter drink — especially if acidity in hot coffee isn't your favourite thing. It also keeps well in the fridge for several days, so it's easy to batch on a Sunday for the week ahead.

Both are valid ways to enjoy coffee once the weather heats up — they're just solving different problems. Once you know which one you're actually after, it's a lot easier to get the result you want.

What beans work best for each method? As a general rule, a bright, fruit-forward single origin can shine in cold brew since the long steep brings out its natural sweetness, while a well-rounded blend holds up nicely as an iced coffee. Browse our full coffee range to find your match.