PlayInfoBox

Home /Education /How to Make Cold Brew Coffee at Home

How to Make Cold Brew Coffee at Home

Cold brew trades heat for time, which is exactly why it tastes so much smoother than coffee brewed hot.

  1. The idea behind cold brew: time instead of heat

    Cold brew steeps coffee grounds slowly in room-temperature or cold water for roughly 12 to 24 hours, using time rather than heat to extract flavor.

  2. Why cold brew tastes smoother and less acidic

    At low temperatures, the compounds responsible for bitterness and sourness dissolve out much less readily, which is why cold brew generally tastes smoother and milder than coffee brewed hot.

  3. Coffee-to-water ratio

    A common approach is a 1:8 to 1:10 ratio of coffee to water, which produces a strong concentrate that you then dilute with water, milk, or ice to taste.

  4. Use a coarse grind

    Because the extraction time is so long, a coarse grind similar to French press is important. A finer grind left to steep that long tends to over-extract and taste harsh or muddy.

  5. Filter thoroughly after steeping

    Once steeping is done, strain the liquid through a cloth or paper filter to remove all the grounds. This step is what gives you a clean, sediment-free concentrate.

  6. How long it keeps

    Filtered cold brew concentrate stored in an airtight container in the refrigerator generally stays good for about 1 to 2 weeks.

Cold brew and iced coffee are not the same thing

Iced coffee is usually just hot-brewed coffee cooled down and poured over ice, while cold brew is extracted with cold water from the start. That difference in method is exactly why cold brew tastes smoother and less acidic than a chilled version of a hot brew.

Dialing in your own recipe

The 1:8 to 1:10 ratio and 12-to-24-hour range are starting points, not fixed rules. A longer steep or a stronger ratio produces a bolder concentrate, while a shorter steep gives a lighter, more delicate result, so it's worth experimenting in small batches to find your own preference.

Frequently Asked Questions

Is cold brew stronger in caffeine than hot coffee?

The concentrate itself often has more caffeine per ounce because of the high coffee-to-water ratio used, but once it's diluted to drinking strength, the total caffeine per cup ends up fairly similar to a regular cup of hot coffee.

Can I use any coffee bean for cold brew?

Yes, though medium to dark roasts are commonly preferred because their bolder, chocolatey notes tend to come through more clearly with cold extraction, while very light roasts can sometimes taste a bit flat when brewed cold.