Making cold brew coffee at home is surprisingly straightforward. You need coarse coffee grounds, cold water, a clean container, and a little patience. Instead of brewing with heat, you let the grounds steep slowly, then filter the coffee and adjust its strength before serving.
This guide walks you through a cold brew concentrate recipe, explains the coffee-to-water ratio, and helps you troubleshoot a cup that tastes too strong, too weak, or gritty.
Cold brew vs. iced coffee: what is the difference?
Cold brew is made by steeping coffee grounds in cool water over several hours. Iced coffee is usually brewed hot and then cooled or poured over ice. Both can be refreshing, but they are different brewing methods.
Cold brewing often produces a mellow-tasting cup, though the result still depends on the beans, roast, ratio, and steeping time. It is not automatically caffeine-free, and a smooth taste does not tell you how much caffeine a serving contains.
What you need to make cold brew
- 100 grams of coarsely ground coffee
- 400 grams of cold drinking water, approximately 400 milliliters
- A clean, food-safe jar or cold brew container with a cover and enough room for the grounds and water
- A kitchen scale
- A fine-mesh strainer and a paper coffee filter or other suitable coffee filter
- A clean bottle or jar for the filtered concentrate
- Water or milk and ice for serving
EleganceBrew Cold Brew Coffee is described as a blend formulated for cold extraction with a smooth, mellow profile. Select its Coarse grind option for this recipe rather than assuming every available grind is suitable.
The cold brew coffee-to-water ratio
For this concentrate recipe, use one part coffee to four parts water by weight. That means 100 grams of coffee and 400 grams of water, or 50 grams of coffee and 200 grams of water for a smaller batch.
This 1:4 ratio creates a concentrate that should be diluted before drinking. It is a starting point, not the only correct cold brew ratio. Ready-to-drink recipes use more water relative to coffee, so check whether a recipe is intended for concentrate before copying its measurements.
The amount of filtered coffee will be less than the water you added because the grounds retain some liquid. Avoid treating the starting water volume as a guaranteed finished yield.
How to make cold brew coffee at home
- Measure the ingredients. Weigh 100 grams of coarse coffee grounds and 400 grams of cold water. Use a clean container with room to stir.
- Combine and stir gently. Add the coffee and water, then stir until the grounds are thoroughly wet. Break up dry pockets rather than leaving grounds floating above the water.
- Cover and refrigerate. Steep in the refrigerator for 12–24 hours. Try about 18 hours for your first batch, then adjust the timing based on taste. Refrigeration keeps the process simple and avoids leaving the batch on a warm counter.
- Strain out the grounds. Pour through a fine-mesh strainer to remove most of the coffee particles. For a cleaner cup, pass the liquid through a suitable paper coffee filter afterward. This can take time; do not force the grounds through.
- Transfer and keep chilled. Put the concentrate in a clean, covered container in the refrigerator. Label it with the preparation date and make small batches you can use promptly. Follow your cold brew maker’s storage instructions if it provides them.
- Dilute before serving. Start with equal amounts of concentrate and water or milk. For example, combine 60 milliliters of concentrate with 60 milliliters of water, then add ice. Taste and add more water if you prefer a lighter cup.
Why coarse grind matters
A coarse grind makes filtering easier and helps limit fine sediment in the finished drink. Very fine grounds can clog a paper filter and leave a gritty cup.
If you buy whole beans, use a grinder that lets you choose a coarse setting. If you buy pre-ground coffee, check the grind option carefully. Espresso-fine grounds are not the best starting point for this immersion recipe.
How long should cold brew steep?
Use 12–24 hours as a working range, with about 18 hours in the refrigerator as a practical first trial. The ideal time varies with your coffee, grind, water ratio, and refrigerator temperature.
Longer is not automatically better. If the batch tastes woody, harsh, or overly heavy after dilution, try a shorter steep next time. If it tastes thin even with less dilution, check that the grounds were fully wet, then consider adjusting steeping time or the brewing ratio.
Easy ways to serve your cold brew
Classic black cold brew
Dilute the concentrate with cold water and pour it over ice. Taste before adding sweetener so you can judge the coffee’s flavor on its own.
Cold brew with milk
Use milk or a dairy alternative for some or all of the dilution liquid. Start with a modest serving and adjust the balance of coffee and milk to your preference. Add milk to the serving glass rather than the entire stored batch.
A lightly sweetened cup
A liquid sweetener mixes into a cold drink more readily than dry sugar. Add a small amount, stir, and taste before adding more.
Troubleshooting homemade cold brew
The coffee is too strong
Dilute it further. A 1:4 brew is a concentrate, so strength straight from the jar is expected. Measure the dilution so you can repeat the result you enjoy.
The coffee tastes weak
Try less dilution first. If the concentrate itself tastes weak, confirm the coffee-to-water measurements and make sure all the grounds were wetted. Change one brewing variable at a time on your next batch.
The coffee is gritty
Use a coarser grind and a finer final filter. Let a paper filter drain naturally instead of squeezing grounds or forcing sediment through it.
The coffee tastes harsh
Check the dilution before changing the recipe. If it still tastes harsh at a comfortable strength, try a shorter steep, a coarser grind, or a different coffee. Clean brewing equipment also matters.
Frequently asked questions
Do I need a special cold brew maker?
No. A clean jar and suitable filters can work. A dedicated maker may make straining more convenient, but it is not required for the basic method.
Can I use regular coffee for cold brew?
Yes. Many coffees can be cold brewed, provided the grind and recipe suit the method. A blend designed for cold extraction is a convenient option, not a requirement.
Should I dilute cold brew before drinking?
For this concentrate recipe, yes. Start with a 1:1 mixture of concentrate and water or milk, then adjust. Recipes brewed at weaker ratios may already be ready to drink.
Does cold brew always have more caffeine than hot coffee?
No. Caffeine depends on the coffee, recipe, dilution, and serving size. Concentrate and ready-to-drink cold brew are not interchangeable when comparing strength or serving amounts.
Build a cold brew routine you can repeat
Keep a note of your coffee weight, water weight, steeping time, and dilution. Those four details make it easier to repeat a good batch instead of guessing each time.
Explore EleganceBrew Cold Brew Coffee, choose Coarse grind, and start with a small batch. Once you find your preferred balance, a little overnight preparation can make your next iced coffee break much simpler.
