Cold Brew Coffee at Home

Cold brew is one of the easiest coffee drinks to make at home. It needs no special equipment, takes about ten minutes of hands-on time, and makes enough for days. The result is smooth, low in acidity, and naturally sweet.

What Makes Cold Brew Different

Cold brew isn’t just iced coffee. Iced coffee is brewed hot and then chilled. Cold brew is made by steeping coffee grounds in room-temperature or cold water for 12 to 24 hours.

Cold water extracts flavor slowly and pulls out fewer of the bright acids and bitter compounds that hot water does. That’s why cold brew tastes rounder and mellower.

What You Need

• Coarsely ground coffee
• Cold, filtered water
• A large jar or pitcher
• A filter: paper, cloth, a fine mesh strainer, or a French press
• A coffee scale (helpful, but optional)

Choosing Beans

Medium and dark roasts are the classic choice. They give cold brew its chocolate, caramel, and nutty character. Light roasts can work, but they often taste flatter cold than they do hot.

Blends tend to be a safe bet, though a fruity single origin can make an interesting, lighter cold brew.

The Method

1. Grind coarse. Use the coarsest setting on your grinder, similar to peppercorns. Fine grounds make cold brew bitter and hard to filter.

2. Measure. A common starting point is 100 grams of coffee to 800 grams of water. Getting the cold brew ratio right depends on whether you want a concentrate or a drink you can serve straight.

3. Combine and stir. Add coffee to the jar, pour in the water, and stir to make sure all the grounds are wet.

4. Steep. Cover and leave it at room temperature for 14 to 18 hours, or in the fridge for 18 to 24 hours.

5. Filter. Pour through a fine mesh strainer first, then through a paper filter for a cleaner result.

6. Store. Keep it sealed in the fridge for up to two weeks.

Serving

If you made a concentrate, dilute it with water or milk. Start with equal parts and adjust from there.

Some ideas:

• Over ice with a splash of milk
• Mixed with tonic water and a slice of orange
• Warmed with hot water for a low-acid hot coffee
• With oat milk and a little vanilla

Troubleshooting

• Too bitter: grind coarser, steep for less time, or use less coffee
• Too weak: use more coffee or steep longer
• Muddy: filter twice and avoid squeezing the grounds
• Flat: check your beans for freshness and use better water

Water Quality

Since cold brew is mostly water, the water you use matters. Heavily chlorinated or hard tap water can leave off flavors. Filtered water usually tastes noticeably cleaner.

Making It Easier

If you have a French press, you can use it for small batches. Add coffee and water, steep with the lid on, and press when it’s done. A dedicated cold brew maker with a built-in filter also works well if you make it often.

Cold brew is a great starting point for anyone new to coffee at home. It’s hard to ruin, and once you have a batch in the fridge, iced coffee is ready whenever you want it.