
DIY cold brew coffee guide: how to choose beans and brew at home
Cold brew used to mean two choices: drop $7 at your local coffee shop, or settle for a bland, store-bought bottle. Ready-to-drink (RTD) brands often use lower-grade beans knowing the cold-steeping process is a forgiving one, resulting in cold brew that’s easy, but flat.
Making cold brew at home only takes a few steps, and with the right beans, it can taste even better than your local café, for a lot less.

What makes a great cold brew: the bean, not the method
Unlike hot coffee, which uses heat to quickly extract acids and oils, cold brew relies on time. This slow, gentle process results in a cup that is remarkably low in acidity with a heavy, syrupy body. When you start with beans from the country’s best roasters, you tap into a world of chocolatey, nutty flavors that pre-brewed options can’t replicate.
Choosing your roast level
While you can technically cold brew any coffee, the roast type will impact the outcome:
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Medium to medium-dark roasts: These are the traditional champions of cold brew. The roasting process develops the sugars in the bean, leading to those classic notes of cocoa, toasted nuts, and caramel.
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Light-medium to light roasts: If you enjoy a tea-like consistency with floral flavors, a light-roast cold brew can be a refreshing departure from the norm, and there are a lot of people who swear by it.
Achieving optimal freshness
Use beans that are between one and three weeks from their roast date. Older beans can begin to develop a stale, cardboard-like flatness that even a 20-hour steep can't hide.
Cold brew flavor profile
Roast level: light
Expected result: floral, and tea-like
Best served: black
Roast level: medium
Expected result: balanced, nutty, and sweet
Best served: black or with a splash of milk
Roast level: medium-dark
Expected result: rich, chocolatey, and bold
Best served: with milk and sugar
Roast level: dark
Expected result: toasty, smoky, and low acid
Best served: with milk and sugar

Best coffee beans for cold brew at home
So what are the best cold brew coffee brands? It’s not just a matter of roaster, but the coffee itself. To help you ditch bottled brews for good, we have selected four standout options from our collection, each specifically vetted for their ability to hold up during a long steep:
1. The chocolate lover’s choice: Atomic, Cold Brew Cadet
Roast level: medium
Atomic are cold brew experts, and this super smooth blend is the proof. It is specifically designed for an easy, sweet taste. You can expect deep notes of brown sugar and milk chocolate with just a hint of raisin. It is great for beginners because it remains consistently delicious whether you drink it black or use it as a base with milk.
2. The sweet and bright pick: PERC, Octo Libre Cold Brew
Roast level: medium
Formerly known as Thunder Lips, this single-origin Ethiopia is proof that fruit-forward coffees can truly shine in a cold-steeped environment. While many cold brews lean solely into dark chocolate, Octo Libre offers a more dynamic profile with notes of chocolate, nuts, and a hint of fruit. It is a good choice for a hot afternoon when you want a refreshing black coffee with a clean finish.
3. The rich and sweet option: Broadsheet, Beacon Blend
Roast level: medium
Broadsheet crafted this blend of Latin American coffees specifically to excel when steeped cold. By focusing on a sweet and smooth profile, they have created a coffee that naturally highlights notes of caramel, fudge, and brown sugar. It is an exceptional choice for those who want a cold brew with a heavy, syrupy body that requires very little additional sweetener, if any.
4. The balanced daily driver: Portrait, Southern Hospitality
Roast level: medium-dark
This big-bodied, smooth blend was created by our friends at Portrait specifically for cold brew. It delivers a comforting and rich profile that captures flavors like chocolate, brown sugar, and a toasted nuttiness. Because it is so robust, it is the best for cold brew milk drinks.

How to make cold brew coffee at home
You don't need expensive equipment to make professional-grade cold brew. A simple mason jar or a French press will do. The key is the ratio and the grind.
1. Keep the grind coarse
Your beans should be ground to a consistency resembling sea salt. Using a fine grind will result in an over-extracted, bitter brew that is difficult to filter. Refer to our grind size chart to make sure your settings are correct.
2. Measure your ratio
For standard cold brew, use a 1:8 ratio (one gram of coffee to eight grams of water). If you prefer a cold brew concentrate (which you can dilute later with water or milk), use a 1:4 or 1:5 ratio.
3. The DIY steps
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Combine: Place your coarse grounds in a clean vessel.
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Pour: Add filtered, room-temperature water.
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Stir: Gently submerge the grounds with a spoon for even saturation.
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Steep: Cover and let sit for 12 to 24 hours. While you can steep in the fridge, room temperature often results in a better flavor.
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Strain: Pour the mixture through a fine-mesh sieve or a paper coffee filter. When brewing with a paper filter, make sure all your grounds end up inside the filter, not between the filter and the dripper. Counterintuitive as it sounds, this actually prevents clogging and keeps water flowing evenly.
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Store: Keep your cold brew in a sealed container in the refrigerator for up to seven days.
Understanding concentrate vs. regular strength
A cold brew concentrate is essentially a flavor base. Because it is so strong, it takes up less space in your fridge and allows for more versatility. When you are ready to drink, simply mix equal parts concentrate and water or milk over ice.

Beyond the bottle: the Trade difference
The reason grocery store brands often taste flat is that they have been sitting in a warehouse or on a shelf for months. At Trade, we match you with cold brew beans that are roasted to order and shipped directly to your door. When your beans arrive days-fresh, you’re not just getting a caffeine fix — you’re brewing smooth cold brew worth savoring.
Ready to find your perfect cold brew match? Take the Trade taste quiz to get matched with coffees you'll love.