23 August 2026 · 4 min read
cold brew is coffee steeped in cold (or room-temperature) water over many hours, with no heat at all. it sounds odd, but temperature changes everything here: without hot water, coffee gives up almost no acids and bitter compounds, leaving sweetness, chocolate, nuts and a soft body in the cup. it's the simplest way to get coffee that's pleasant even for people who dislike acidity or bitterness.
cold brew isn't «iced coffee»
they're often confused, but they're different drinks. «iced coffee» is ordinary hot coffee, brewed as usual and then chilled or poured over ice; it keeps all the acids and aromas of hot extraction. cold brew is steeped in cold water from the start over many hours — and the taste is fundamentally different: rounder, sweeter, less acidic and less aromatic «on top», but with a very soft body.
why cold water gives a different taste
extraction with cold water is slow and selective. the hot acids and part of the aromatics simply don't have time to move into the water at this temperature, so cold brew has almost no perceptible acidity. instead, over 12–18 hours the water calmly draws out sugars and heavier, «sweet» compounds. hence cold brew's reputation as «smooth», dessert-like coffee. a side effect: the concentrate can hold even more caffeine (long contact), so dilute it.
a base recipe (concentrate)
- grind: coarse, as for a french press (fine gives cloudiness and bitterness)
- concentrate ratio: about 1 part coffee to 5 parts water (e.g. 100 g coffee to 500 ml)
- pour over cold filtered water, stir so all the coffee is wet
- cover and leave for 12–18 hours in the fridge or at room temperature
- strain through a paper filter or cloth (twice if you want it clean).
you get a strong concentrate that keeps in the fridge for 1–2 weeks.
how to drink it
the concentrate is almost never drunk undiluted. dilute it with water or milk at about 1:1 (to taste), add ice. a summer classic: cold brew + water + ice; or cold brew + milk (lovely, since the coffee's sweetness gets along with milk). you can add a little tonic — a trendy, refreshing combination.
which bean to use
cold brew is forgiving of the bean, but it brings out a medium and medium-dark roast with chocolate, nut and caramel notes best — they become even rounder. bright light fruity lots work too, but some of their «spark» (acidity, florals) is lost in the cold, so an expensive delicate single origin is often a shame to put into cold brew.
common mistakes
- a fine grind → a cloudy, bitter drink with sediment; use coarse
- too little time (a few hours) → watery and sour; keep it 12+ hours
- forgetting to dilute the concentrate → too strong and intense
- brewing it hot and then «calling it cold brew» → that's iced coffee, a different taste.
nitro cold brew — for dessert
cafes sometimes serve «nitro» — cold brew charged with nitrogen and poured from a tap like a dark beer: a thick creamy head, a velvety texture, natural sweetness with no sugar. you can't reproduce it at home without equipment, but it's worth trying in a cafe — it's impressive.
in short
cold brew is the easiest way into home coffee: you need no gram-precise scale, no thermometer, no machine. coarse grind, cold water, a night in the fridge, strain, dilute — and you get a soft, sweet concentrate that keeps for weeks and saves a hot day. perfect for summer and for anyone who «doesn't like sour or bitter coffee».