How to Make Cold Brew Coffee at Home Without Special Equipment

Café cold brew costs a small fortune. Making it at home costs almost nothing extra beyond the beans you already buy. The process is embarrassingly simple.

Here is how to make excellent cold brew with equipment you already own.

What You Need

Cold brew requires minimal gear.

Essential Items

• Container with lid (mason jar, pitcher, or pot)

• Coarse ground coffee

• Cold or room temperature water

• Fine mesh strainer

• Paper filter or cheesecloth for final filtering

Optional but Helpful

• Kitchen scale for measuring

• Dedicated cold brew pitcher with built-in filter

• Nut milk bag for easy straining

You can start today with a glass jar and a coffee filter. Dedicated equipment adds convenience, not capability.

Getting Your Ratio Right

Ratio determines strength and flavour intensity.

For Concentrate

Standard concentrate ratio is 1:4 to 1:5 (coffee to water by weight):

• 100 grams coffee + 400 to 500 grams water

• Results in strong concentrate

• Must be diluted before drinking

• Versatile for different serving styles

For Ready-to-Drink

If you want to drink without diluting, use 1:8 to 1:12 ratio:

• 100 grams coffee + 800 to 1200 grams water

• Results in drinking strength directly

• Simpler but less flexible

• Good for large batch single-strength brewing

Start with concentrate. You can always add water later but cannot remove it.

Step-by-Step Process

Follow these steps for consistent results.

Step 1: Grind Your Coffee

Use coarse grind, similar to raw sugar:

• Finer grinds over-extract and create bitterness

• Coarser grinds under-extract and taste weak

• Consistency matters more than exact size

Specialty coffee with chocolate and nutty notes works particularly well for cold brew.

Step 2: Combine Coffee and Water

Add ground coffee to your container:

• Pour in cold or room temperature water

• Stir gently to ensure all grounds are wet

• Check for dry pockets and mix them in

• Seal or cover the container

No need for filtered water, though it does produce slightly cleaner results.

Step 3: Steep

Place your container in the refrigerator or leave at room temperature:

• Refrigerator steeping: 18 to 24 hours

• Room temperature steeping: 12 to 18 hours

• Warmer temperatures extract faster

Room temperature produces faster results. Refrigerator produces slightly cleaner flavour. Both work well.

Step 4: Strain the Grounds

After steeping, remove the coffee grounds:

• Pour through fine mesh strainer into another container

• This removes bulk grounds but leaves sediment

• Do not squeeze or press grounds (adds bitterness)

Step 5: Filter for Clarity

For cleaner concentrate, filter again:

• Line strainer with paper coffee filter

• Pour strained cold brew through slowly

• Let gravity do the work

• Result is clear, sediment-free concentrate

This step is optional. Some prefer the body that slight sediment adds.

Step 6: Store Properly

Transfer finished cold brew to sealed container:

• Refrigerate immediately

• Concentrate keeps 1 to 2 weeks

• Ready-to-drink keeps about 1 week

• Taste declines gradually after peak freshness

Serving Your Cold Brew

Concentrate requires dilution. Here are your options.

Classic Dilution

Mix concentrate with water:

• Start with 1:1 ratio (equal parts concentrate and water)

• Adjust to taste

• Add ice if desired

With Milk

Cold brew and milk combine beautifully:

• Use less water or skip it entirely

• Add milk or cream to taste

• Naturally sweet, often needs no sugar

Hot Cold Brew

Yes, you can heat it:

• Mix concentrate with hot water

• Results in smooth, low-acid hot coffee

• Unusual but genuinely good

Troubleshooting Common Problems

When cold brew disappoints, these fixes help.

Cold Brew Tastes Weak

Possible causes:

• Ratio too low (not enough coffee)

• Grind too coarse

• Steeping time too short

Fix by: Using more coffee, grinding finer, or steeping longer.

Cold Brew Tastes Bitter

Possible causes:

• Grind too fine

• Steeping time too long

• Pressed or squeezed grounds during filtering

Fix by: Using coarser grind, reducing steep time, or being gentler when filtering.

Cold Brew Tastes Sour

Possible causes:

• Coffee is stale

• Steeping time too short

• Water too cold (refrigerator all the way)

Fix by: Using fresher specialty coffee, steeping longer, or starting at room temperature.

Cold Brew Is Cloudy

Possible causes:

• Fine particles passed through strainer

• Did not filter after straining

Fix by: Running through paper filter. Cloudiness does not affect taste significantly.

Choosing Beans for Cold Brew

Bean selection affects final results meaningfully.

What Works Best

Cold brew suits:

• Medium to medium-dark roasts

• Chocolate, caramel, and nutty profiles

• Lower acidity beans

• Indian single origins with complex flavors

What to Avoid

Cold brew may disappoint with:

• Very light or very dark roasts

• Bright, fruity, acidic coffees

• Delicate floral profiles

These beans showcase better through hot brewing methods like pour over.

Scaling Your Batch

Adjust quantities based on consumption.

Small Batch (2 to 3 Servings)

• 50g coffee + 250g water (concentrate)

• Good for testing or light drinkers

Medium Batch (5 to 7 Servings)

• 100g coffee + 500g water (concentrate)

• Good for weekly personal supply

Large Batch (10+ Servings)

• 200g coffee + 1000g water (concentrate)

• Good for families or entertaining

Concentrate format makes scaling easy. Multiply proportionally.

Time-Saving Tips

Streamline your cold brew routine.

Batch Brewing

Make enough for the week in one session:

• Sunday evening: start batch

• Monday morning: filter and store

• All week: enjoy without daily prep

Pre-Portioned Coffee

Measure coffee doses in advance:

• Portion into individual bags or containers

• When ready to brew, just add water

• Eliminates measuring each time

Dedicated Container

Use the same jar every time:

• Mark water level for your standard ratio

• No measuring needed after setup

• Routine becomes automatic

Black Pole Coffee for Cold Brew

At Black Pole Coffee, our single origin coffees from Indian estates make exceptional cold brew. Chocolate and complex fruit notes shine through cold extraction. Start with our beans and taste what home cold brew can achieve.