Drinks

Cold brew

Cold brew is coffee made by steeping coarsely-ground beans in cold water for 16–18 hours, then filtering. The result is a smooth, less acidic concentrate, typically diluted before serving or served straight over ice. Cold brew is distinct from iced coffee, which is hot-brewed coffee poured over ice.

The standard cold brew ratio is 1:8 by weight — 200g of coarsely ground beans steeped in 1.6L of cold water. Steeping happens at room or refrigerated temperature for 16–18 hours; under-steeping produces weak, sour cold brew, over-steeping produces bitter and muddy results.

Cold brew tastes different from hot-brewed coffee because lower temperature extracts different compounds. Cold extraction draws out more sugars and less acid, producing a smoother, sweeter cup with less perceived bitterness. Many people who avoid hot coffee due to acidity tolerate cold brew well.

Cafés brew cold brew in 24-hour cycles, store batches refrigerated, and dilute to serve depending on the customer drink (straight concentrate, diluted with water, blended with milk). Shelf life is roughly 7 days refrigerated for concentrate, 3–4 days for ready-to-drink.

FAQ

Frequently asked questions

How long does cold brew need to steep?
16–18 hours is the sweet spot. Under 12 hours: under-extracted, sour. Over 24 hours: over-extracted, bitter. Find your specific time once and stick with it for consistency.
Is cold brew stronger than iced coffee?
Concentrate vs concentrate, yes — typical cold brew concentrate is 2× the strength of iced drip. But as served (often diluted), cold brew and iced coffee can be comparable in caffeine. Specific drinks vary widely by café.
Can I use any coffee for cold brew?
Yes, but medium-to-dark roasts work best. Lighter roasts produce thin, sour cold brew. Single-origin medium roasts and comfort blends are common cold brew choices. Skip the most expensive single-origins — their nuance is lost in cold extraction.

Ready to run a tighter ship?

Join 30+ cafes and restaurants already saving time, reducing waste, and delivering consistent quality with Brewspace.

Free 14-day trial
No credit card required
Cancel anytime