How to Make Cold Brew at Home (Step-by-Step)

If you’ve ever stood in a hot kitchen in the middle of an Ozarks July and thought, “There’s no way I’m drinking a steaming mug right now,” this one’s for you. Learning how to make cold brew at home is one of the simplest, most rewarding things you can do with a bag of good coffee. No fancy machine. No barista training. Just coarse grounds, cold water, a jar, and a little patience.

Cold brew is smooth, naturally sweet-tasting, and low on that sharp bite some folks don’t love in hot coffee. It keeps in the fridge for days, so one batch can carry you through a whole work week. And once you’ve got the basics down, you can tune it to taste exactly how you like it.

In this guide, we’ll walk you through everything: the right grind, the best cold brew ratio, how long to steep, how to filter without making a mess, how to store it, and how cold brew stacks up against iced coffee. By the end, you’ll know exactly how to make cold brew that beats anything out of a gas station cooler.

Quick Answer: To make cold brew, combine coarsely ground coffee with cold, filtered water at about 1:4 to 1:5 (by weight) for concentrate, or about 1:8 for ready-to-drink. Stir, cover, and steep 12–24 hours (16–18 hours is the sweet spot), then strain through a fine filter and refrigerate. Dilute concentrate about 1:1 with water or milk and serve over ice.

What Is Cold Brew, Exactly?

Cold brew is coffee made by steeping grounds in cold or room-temperature water for a long time, usually 12 to 24 hours, instead of brewing with hot water for a few minutes. Time does the work that heat normally does.

Here’s why that matters. Hot water pulls flavor out of coffee fast, and it grabs a lot of compounds all at once, including some of the brighter, sharper acids and a few of the more bitter ones. Cold water extracts more slowly and more selectively. The result is a cup most people describe as:

• Smooth – less of a sharp edge on the finish
• Lower in perceived acidity – it tastes gentler on the palate
• Rich and chocolatey – especially with medium and darker roasts
• Naturally sweet-tasting – even with no sugar added

That doesn’t mean cold brew is “better” than hot coffee. It’s just different. It’s a separate tool in the toolbox, and when the humidity’s thick enough to cut with a knife, it’s the right tool.

Cold Brew Concentrate vs. Ready-to-Drink Cold Brew

Before you start, decide which kind you want to make. There are two main styles:

1. Cold brew concentrate is made strong, with less water, so it takes up less fridge space. You dilute it before drinking, usually about half concentrate and half water or milk.
2. Ready-to-drink cold brew is made with more water from the start, so you just pour it over ice and go.

Concentrate is more flexible. You can make it strong for a latte-style drink with milk, or thin it out more for a lighter glass. Ready-to-drink is simpler if you don’t want to think about it in the morning. We’ll cover both ratios below.

How to Make Cold Brew: What You’ll Need

The beauty of cold brew is that you probably already own almost everything you need. Here’s the basic kit:

• Coffee – whole beans you grind yourself, or coffee ground coarse
• A grinder – a burr grinder is ideal because it gives a more even coarse grind
• Cold, filtered water – good water makes good coffee; if your tap water tastes off, your cold brew will too
• A large container – a half-gallon mason jar, a pitcher, or a French press
• A filter – cheesecloth, a nut milk bag, a paper coffee filter, a fine-mesh strainer, or the plunger on a French press
• A kitchen scale – optional, but it makes your results consistent
• A long spoon – for stirring
• A clean bottle or jar with a lid – for storing the finished brew in the fridge

That’s it. If you want to get fancier later, dedicated cold brew systems (the Toddy-style buckets with a felt filter and a drain plug) are great for bigger batches. But a mason jar and some cheesecloth will get you 90% of the way there.

Step 1: Choose the Best Coffee for Cold Brew

When you’re figuring out how to make cold brew taste its best, bean choice matters. The honest answer to “what’s the best coffee for cold brew?” is: the coffee you already enjoy. But there are a few things worth knowing.

Roast Level

Cold brew tends to highlight body, sweetness, and deeper flavors like chocolate, caramel, and nuts. That’s why medium and medium-dark roasts are the go-to for a lot of people. They make a classic, rich, smooth glass that plays nice with milk and cream.

Dark roasts make a bold, heavy cold brew with roasty, smoky notes. If you like your coffee strong and you drink it with cream, a dark roast is hard to beat.

Light roasts can absolutely work, too. You’ll get a brighter, fruitier, more tea-like cold brew. It’s a different experience, and some folks love it, especially black. If you want to dig into how roast level changes flavor, check out our guide on light vs. medium vs. dark roast.

Freshness Matters

Cold brew is forgiving, but it isn’t magic. Stale coffee makes flat, papery cold brew. Use beans that were roasted recently and stored properly: airtight, away from light, heat, and moisture. If you’re not sure you’re storing your beans right, our guide on how to store coffee beans covers the do’s and don’ts.

Our Take

Start with a medium or medium-dark roast for your first few batches. It’s the most forgiving and gives you that classic cold brew flavor. Once you’ve nailed your process, experiment with a lighter roast and see which you like better. You can browse what we’re roasting right now in our shop.

Step 2: Grind Coarse (This Is Non-Negotiable)

If there’s one thing that makes or breaks cold brew, it’s the grind. Anyone who has learned how to make cold brew the hard way will tell you the same. Cold brew needs a coarse grind, something like rough sea salt or cracked peppercorns.

Here’s why:

• Fine grounds over-extract. Over 12 to 24 hours, fine coffee gives up too much, and your cold brew turns muddy, bitter, and harsh.
• Fine grounds clog filters. You’ll be standing at the sink for twenty minutes waiting for sludge to drip through cheesecloth. Nobody wants that.
• Fine grounds make gritty coffee. More sediment slips through the filter and ends up at the bottom of your glass.

A coarse grind lets water move through the coffee evenly, extracts at a steady pace, and strains out clean.

If you use a burr grinder, set it at or near the coarsest setting. If you’re buying pre-ground coffee, look for “coarse” or ask for a French press grind. For a visual on what “coarse” actually looks like compared to medium or fine, take a look at our coffee grind size chart.

Tip: Blade grinders make uneven grounds, with some boulders and some dust. If that’s all you’ve got, pulse in short bursts and shake the grinder between pulses. It won’t be perfect, but it’ll be better.

Step 3: Get the Cold Brew Ratio Right

The cold brew ratio is the amount of coffee to water. It’s the biggest lever you have for strength. Measuring by weight with a kitchen scale is the most consistent way to do it, but we’ll give you volume guidelines, too.

Here are the two ratios to know:

• Cold brew concentrate: about 1:4 to 1:5 (1 part coffee to 4–5 parts water, by weight)
• Ready-to-drink cold brew: about 1:8 (1 part coffee to 8 parts water, by weight)

For concentrate, you’ll dilute it roughly 1:1 with water or milk before drinking. Diluting a 1:4 or 1:5 concentrate at 1:1 puts you right around a 1:8 to 1:10 final strength. That lands you close to the ready-to-drink range, which is why both approaches end up tasting similar in the glass.

If you want a deeper dive on ratios in general, including hot brewing, our coffee to water ratio guide breaks it all down.

Cold Brew Ratio and Batch Size Chart

Here’s a handy chart for common batch sizes. Grams are the most accurate. Cup measurements of coarse ground coffee are approximate, since beans vary in size and density.

A quick note on yield: coffee grounds soak up water and hold onto it, so you’ll always get back less liquid than you put in. The stronger the ratio, the more water the grounds keep. Plan on losing a decent chunk of your water to the grounds, especially with concentrate.

Which Ratio Should You Start With?

If you’re new to cold brew, start with 1:5 concentrate. It’s strong enough to hold up to ice and milk, it’s easy to adjust once it’s diluted, and it’s forgiving if your grind or steep time isn’t perfect. Taste it, then tweak next time: go to 1:4 for more punch, or 1:6 for something lighter.

Step 4: Combine, Stir, and Steep

Now for the easy part. Here’s the full step-by-step recipe for how to make cold brew in a mason jar or pitcher.

The Recipe: How to Make Cold Brew Concentrate (Half-Gallon, 1:5)

You’ll need:

• About 380 grams (roughly 4½ cups) coarsely ground coffee
• About 1,890 grams (½ gallon, or 8 cups) cold, filtered water
• A half-gallon mason jar or large pitcher
• Cheesecloth, a nut milk bag, or paper coffee filters
• A fine-mesh strainer and a second clean jar or bottle

Instructions:

1. Weigh and grind your coffee. Measure out about 380 grams of beans and grind them coarse, like rough sea salt.
2. Add the grounds to your jar. Pour the coarse grounds into the bottom of your clean half-gallon jar or pitcher.
3. Pour in about half the water. Add roughly half of your cold, filtered water slowly, making sure all the grounds get wet.
4. Stir gently. Use a long spoon to stir until there are no dry clumps. Dry pockets mean uneven extraction.
5. Add the rest of the water. Pour in the remaining water and give it one more gentle stir.
6. Cover it. Put a lid on the jar or cover the pitcher with plastic wrap. This keeps out fridge odors and dust.
7. Steep for 12–24 hours. Leave it on the counter or in the fridge. Around 16–18 hours is the sweet spot for most people (see the steeping section below).
8. Strain it. Pour the brew slowly through a fine-mesh strainer lined with cheesecloth or a coffee filter into your clean jar. Don’t squeeze the grounds hard; that pushes bitter, silty stuff into your coffee.
9. Strain a second time (optional). For a cleaner, less gritty cup, run it through a paper filter once more.
10. Refrigerate. Cap your concentrate and store it in the fridge.
11. Dilute and serve. Fill a glass with ice, pour in concentrate about halfway, and top with cold water or milk. Taste and adjust.

That’s how to make cold brew in its simplest form. Once you’ve done it once or twice, the whole hands-on process takes about ten minutes. The rest is just waiting.

How Long to Steep Cold Brew

This is one of the most common questions we hear, and the answer is: 12 to 24 hours, with 16 to 18 hours being the sweet spot for most batches.

But where you steep it changes things:

• Room temperature (counter): Extraction happens a little faster. 12 to 18 hours usually does the trick. Keep it out of direct sunlight and away from the stove.
• In the fridge: Colder water extracts slower. Plan on 18 to 24 hours to get full flavor.

What Happens If You Steep Too Short?

Under-steeped cold brew tastes thin, watery, and a little sour or grassy. It won’t have that deep, chocolatey body you’re after. If your cold brew tastes weak even at a strong ratio, try steeping longer before you add more coffee.

What Happens If You Steep Too Long?

Past about 24 hours, cold brew can start to taste woody, bitter, or flat. The good stuff has already been pulled out, and now you’re getting the less pleasant compounds. Going a few hours over won’t ruin it, but don’t leave it steeping for two days.

A Note on Food Safety

Cold brew doesn’t get the heat of a hot brew, so treat it like any other perishable drink. Start with a clean container, use clean water, and refrigerate the finished brew as soon as it’s strained. If you’d rather play it extra safe, steep in the fridge from the start. When it’s 95 degrees out and muggy, a counter in a warm kitchen isn’t the place to leave coffee sitting for a full day.

Filtering Methods: Four Ways to Strain Cold Brew

You don’t need special gear to filter cold brew, but different methods give you different results. Here are four that work well.

1. Mason Jar + Cheesecloth

The classic homemade method. Steep in a mason jar, then pour through a strainer lined with two or three layers of cheesecloth.

• Pros: Cheap, easy, uses stuff you probably have
• Cons: Can be messy; some fine sediment gets through a single layer
• Tip: Follow with a paper coffee filter for a cleaner cup

2. French Press

A French press is basically a cold brew maker in disguise. Add coarse grounds and water, stir, put the lid on without pressing, and steep in the fridge. When it’s ready, press the plunger slowly and pour.

• Pros: Built-in filter, minimal mess, great for small batches
• Cons: Limited capacity; the metal mesh lets through some fine particles
• Tip: Pour through a paper filter afterward if you don’t like sediment

3. Nut Milk Bag

A nut milk bag is a fine-mesh, reusable fabric bag. You can steep the grounds right inside the bag, like a giant tea bag, then just lift it out when time’s up.

• Pros: Super easy cleanup, reusable, very little mess
• Cons: Needs to be washed well between uses so it doesn’t pick up old coffee flavors
• Tip: Let the bag drain on its own over the jar for a few minutes instead of wringing it

4. Toddy-Style Cold Brew System

These are dedicated cold brew brewers, usually a plastic bucket with a thick felt filter and a rubber stopper at the bottom. You steep, pull the plug, and let the concentrate drain into a glass carafe.

• Pros: Very clean concentrate, handles big batches, easy to repeat
• Cons: Costs more, takes up cabinet space, filters need replacing
• Tip: Great if you’re making cold brew every week or brewing for a crowd

No matter which method you pick, the same rule applies: pour slow, don’t squeeze. Patience at the filter is what separates a clean cup from a gritty one.

How to Store Cold Brew (and How Long It Lasts)

Once strained, pour your cold brew into a clean, airtight bottle or jar and keep it in the fridge.

• Cold brew concentrate keeps roughly 1–2 weeks refrigerated, but it tastes best within the first week.
• Ready-to-drink (diluted) cold brew doesn’t last as long. Aim to finish it within a few days.
• Cold brew with milk or cream already mixed in should be treated like the dairy it contains and drunk that day.

Over time, cold brew slowly loses its brightness and starts tasting flat or stale. It won’t turn dangerous overnight if you’ve kept it cold and clean, but flavor fades. If it smells sour or off, or you see anything growing, pour it out.

Tip: Label your jar with the date you strained it. It’s easy to lose track, especially if you make batches back to back.

How to Serve Cold Brew

Here’s where cold brew gets fun. Once you’ve got a jar of concentrate in the fridge, you’ve got options.

Classic Over Ice

Fill a glass with ice. Pour concentrate about halfway up. Top with cold water. Stir and taste. Too strong? Add more water. Too weak? Add more concentrate. Simple as that.

Cold Brew with Milk or Cream

Swap the water for whole milk, half-and-half, oat milk, or whatever you like. Cold brew’s low perceived acidity and chocolatey notes pair really well with dairy. This is a favorite for folks who normally drink hot coffee with cream.

Sweetened Cold Brew

Granulated sugar doesn’t dissolve well in cold liquid, so it sinks to the bottom of the glass. Use simple syrup instead: equal parts sugar and hot water, stirred until dissolved, then cooled. Keep a jar in the fridge next to your cold brew. You can also use honey or maple syrup, but stir them into a splash of warm water first so they mix in.

Coffee Ice Cubes

Here’s a trick that’ll change your summer. Pour some diluted cold brew into an ice cube tray and freeze it. Use those cubes in your cold brew so your drink doesn’t get watered down as the ice melts. Your last sip tastes as good as your first.

Hot Cold Brew (Yes, Really)

On a chilly morning, you can dilute concentrate with hot water instead of cold. You’ll get a smooth, low-bite hot cup in about thirty seconds. It’s a handy trick when you’re rushing out the door in the winter.

Cold Brew vs. Iced Coffee vs. Japanese Iced Coffee

People mix these up all the time, and it’s no wonder. They all end up cold and in a glass with ice. But they’re made very differently, and they taste different, too.

Cold Brew

• How it’s made: Coarse grounds steeped in cold or room-temperature water for 12–24 hours
• Taste: Smooth, rich, chocolatey, lower perceived acidity
• Time: Needs planning ahead
• Best for: People who want a mellow, easy-drinking iced coffee and like having a batch ready in the fridge

Iced Coffee

• How it’s made: Regular hot-brewed coffee that’s cooled down and poured over ice
• Taste: Brighter, more like your normal hot coffee, but it can get watery as ice melts and sometimes tastes a little stale if it sat around cooling
• Time: As fast as your usual brew
• Best for: Using up leftover coffee or when you didn’t plan ahead

Japanese Iced Coffee (Flash Brew)

• How it’s made: Coffee brewed hot, usually pour-over, directly onto ice. You swap part of the brewing water for ice, so the coffee is brewed stronger and chills instantly as it hits the ice.
• Taste: Bright, crisp, aromatic, and clean, keeping more of the coffee’s lively acidity and fruit notes
• Time: A few minutes
• Best for: Light roasts and anyone who wants to taste the full character of a coffee, served cold

So in the cold brew vs. iced coffee debate, there isn’t a winner. It’s about what you want in the glass. If you want mellow and smooth, go cold brew. If you want bright and fast, go flash brew. If you’ve got half a pot left from breakfast, go iced coffee and don’t feel bad about it.

Is Cold Brew Stronger Than Regular Coffee?

It depends, and mostly on how you dilute it.

Cold brew concentrate is strong. Sip it straight and you’ll feel it. But almost nobody drinks it straight. Once you cut it with water, milk, and ice, a glass of cold brew can land anywhere from lighter than a regular cup to noticeably stronger. The caffeine in your glass comes down to how much coffee you used in the first place and how much you diluted it.

If you’re watching your caffeine, the easy fix is to dilute more. If you want more kick, dilute less or brew at a stronger ratio. You’re in control.

Common Mistakes When Learning How to Make Cold Brew

Even simple recipes have pitfalls. Here are the ones we see most often when people are figuring out how to make cold brew at home.

1. Grinding too fine.
The big one. Fine grounds make bitter, muddy coffee and clog your filter. Fix: grind coarse, like rough sea salt.

2. Using stale coffee.
Old beans make flat cold brew. Fix: use fresh-roasted coffee stored in an airtight container.

3. Not stirring.
Dry clumps of grounds don’t extract. Fix: stir gently after adding water so everything’s saturated.

4. Steeping too short or too long.
Too short tastes thin and sour; too long tastes woody and bitter. Fix: stay in the 12–24 hour range and start around 16–18 hours.

5. Squeezing the filter.
Wringing out cheesecloth or a nut milk bag pushes bitter sediment into your coffee. Fix: let it drain on its own.

6. Skipping the fridge.
Leaving finished cold brew on the counter shortens its life and isn’t a good food safety habit. Fix: refrigerate as soon as it’s strained.

7. Forgetting to dilute concentrate.
Drinking concentrate straight is intense, and it’s easy to think “this is too strong” and write off cold brew entirely. Fix: dilute about 1:1, then adjust.

8. Using funky water.
If your water tastes like chlorine or minerals, your cold brew will too. Fix: use filtered water.

How to Make Cold Brew for a Crowd

Cold brew is made for sharing. Because it keeps for days and doesn’t need to be served hot, it’s perfect for gatherings, road trips, and long days outdoors.

Around here, we think about that a lot. Ozarks summers are hot and sticky, and there’s nothing better than a cooler of cold brew at a summer car meet. At our Cars & Coffee meetups, folks are standing around in the sun looking at engines and chrome for a good while, and a cold cup goes a long way.

If you’re bringing cold brew to a get-together, here’s how to do it right:

• Make a big batch of concentrate a day or two ahead. A 1-gallon batch at 1:5 gives you plenty to work with once it’s diluted.
• Bring it in a sealed jug or dispenser tucked into a cooler with plenty of ice.
• Dilute on-site so people can make it as strong or light as they like.
• Bring a jug of cold water, a jug of milk, and a bottle of simple syrup so everyone can build their own.
• Pack coffee ice cubes in a separate cooler bag if you want to go the extra mile.
• Keep it cold the whole time. Don’t leave it baking on a tailgate in the afternoon sun.

It’s an easy way to be the most popular person at a cookout, a ball game, a fishing trip, or a church potluck.

Cold Brew Recipe Variations to Try

Once you’ve got a solid base, it’s fun to play around. Here are a few simple ideas:

• Vanilla cold brew: Add a splash of vanilla extract or a vanilla simple syrup to your glass.
• Cinnamon cold brew: Toss a cinnamon stick or two into the jar while it steeps for a warm, spiced note.
• Cold brew float: Pour cold brew over a scoop of vanilla ice cream on a hot afternoon. Dessert and coffee in one.
• Sweet cream cold brew: Whisk a bit of heavy cream with a touch of simple syrup and vanilla, then pour it over your cold brew so it cascades down.
• Salted caramel cold brew: Stir in a little caramel sauce and a tiny pinch of salt.
• Maple cold brew: A little maple syrup and a splash of milk make a cozy early-fall drink.

Keep the base simple and do your experimenting in the glass. That way, one batch of concentrate can turn into a different drink every day of the week.

A Simple Weekly Cold Brew Routine

The best part of learning how to make cold brew is how easily it slides into a routine. Here’s a schedule that works for a lot of households:

1. Sunday afternoon: Grind your coffee and start a half-gallon batch of 1:5 concentrate.
2. Monday morning: Strain it, bottle it, and put it in the fridge. Enjoy your first glass.
3. Monday through Friday: Pour, dilute, and go. No brewing on busy mornings.
4. Next weekend: Finish whatever’s left and start a fresh batch.

That rhythm keeps your cold brew fresh, well inside that one-week window where it tastes its best, and it means you’ll never scramble for coffee on a weekday morning.

Frequently Asked Questions

What is the best cold brew ratio?

For cold brew concentrate, a ratio of about 1:4 to 1:5 (coffee to water, by weight) is a great place to start, and you’ll dilute it about 1:1 before drinking. For ready-to-drink cold brew that you can pour straight over ice, go with about 1:8. Adjust from there to suit your taste.

How long should I steep cold brew?

Steep cold brew for 12 to 24 hours. About 16 to 18 hours is the sweet spot for most batches. Room-temperature brews extract a bit faster, so they land on the shorter end; fridge brews need the longer end.

Can I use regular ground coffee to make cold brew?

You can, but it’s not ideal. Regular pre-ground coffee is usually ground medium or medium-fine for drip machines, which tends to over-extract and clog your filter over a long steep. If you use it, shorten the steep time and double-filter. For best results, use a coarse grind.

How long does cold brew last in the fridge?

Cold brew concentrate keeps for about 1 to 2 weeks in a sealed container in the fridge, but it tastes best within the first week. Diluted cold brew should be finished within a few days, and any cold brew with milk mixed in should be drunk the same day.

Is cold brew less acidic than hot coffee?

Cold brew generally has lower perceived acidity than hot coffee, which is why it tastes smoother and gentler to a lot of people. The flavor comes across as rounder and sweeter, with less of a sharp, bright edge.

What’s the difference between cold brew and iced coffee?

Cold brew is made by steeping coarse grounds in cold water for 12 to 24 hours. Iced coffee is regular hot-brewed coffee that’s cooled and poured over ice. Cold brew tastes smoother and mellower; iced coffee tastes brighter and more like a standard cup.

Should I steep cold brew in the fridge or on the counter?

Either works. Counter steeping extracts a little faster, so 12 to 18 hours is usually enough. Fridge steeping takes a bit longer, around 18 to 24 hours, but it’s the safer bet in a hot kitchen. Either way, refrigerate the finished cold brew as soon as you strain it.

What is the best coffee for cold brew?

Medium and medium-dark roasts are a popular choice for cold brew because they bring out chocolate, caramel, and nutty notes and pair well with milk. Dark roasts make a bolder, roastier brew, and light roasts make a brighter, fruitier one. The most important thing is that the coffee is fresh and you enjoy the way it tastes.

Ready to Brew? Start with Good Beans

Now you know how to make cold brew at home, from the grind to the glass. The recipe is simple. What makes it great is starting with coffee that’s fresh and roasted with care.

At Sheppard’s Coffee Co., we roast right here in the Ozarks, and we build everything around three things: God, Family, and Coffee. Find your next cold brew coffee in our shop, and if you’re local, look for us at the farmers market starting in the 2027 season, or pull up to one of our Cars & Coffee meetups. Bring a thermos. We’ll talk cold brew.