Everything you need to brew better espresso at home. Our guides cover equipment selection, technique fundamentals, troubleshooting, and the skills that separate good home espresso from great.
What Is Cold Brew Coffee? How It's Made, Taste, and Caffeine
Cold brew coffee is made by steeping coarsely ground coffee in cold or room-temperature water for 12–24 hours — no heat, no brewing machine. The result is a smooth, low-acid coffee concentrate that is diluted and served cold. Cold brew is not iced coffee: the two are made completely differently and taste very different. How Cold Brew Is Made The cold brew process has four steps: Coarse grind — Coffee is ground coarsely, similar to French press. Fine grinds over-extract and turn bitter in cold water. Cold water steep — Grounds are submerged in cold or room-temperature water. The standard ratio is 1:8 (1g coffee per 8g water) for regular strength, or 1:4 for concentrate. Long steep — The mixture steeps in the refrigerator (or at room temperature) for 12–24 hours. Cold steeping is slower than hot brewing, which is why it needs much more time. Filter — The grounds are filtered out through a fine mesh strainer, cheesecloth, or paper filter. What remains is smooth cold brew concentrate or ready-to-drink cold brew. There is no heating involved at any stage. This is the defining characteristic that separates cold brew from every other brewing method. ...