Yes. You can make cold brew with decaffeinated coffee beans using the same basic method as regular beans: mix coarse grounds with cool water, steep in the refrigerator and strain. Decaf cold brew offers the smooth, chilled style of coffee with substantially less caffeine, although it is not guaranteed to be entirely caffeine-free.
What you’ll need for a small batch
- 50 grams of coarse-ground decaf coffee
- 500 grams (about 500 mL) of cold, drinkable water
- A clean jar or covered brewing pitcher
- A fine strainer plus paper coffee filter, if you want less sediment
- Ice, milk or additional water to serve
This 1:10 coffee-to-water weight ratio is a flexible starting recipe, not a universal ideal. Darker or lighter roasts and personal taste will affect the result. If you use a more concentrated recipe, dilute the finished coffee to taste.
Step 1: Choose decaf beans and grind them coarse
Use a decaf roast you already enjoy. Grind it to a coarse texture similar to rough sand or the grounds commonly used for French press coffee. Very fine grounds can make cold-brew filtering slow and leave more muddy sediment. A medium grind can work, but start coarse if this is your first batch.
Step 2: Stir and refrigerate
Add the water to the grounds, stir to wet all the coffee, cover the jar and put it into the refrigerator. Start tasting after about 12 hours and consider a longer steep—up to about 18 hours—if you prefer a stronger extraction. Cold water extracts coffee slowly, so there is no need to heat it first.
Avoid leaving a wet coffee mixture unattended at room temperature for extended periods; cold refrigerated steeping is an easy, predictable home approach. If you notice an off odor or visible spoilage, discard it rather than trying to rescue the batch.
Step 3: Filter the grounds before serving
Pour the steeped coffee through a strainer to remove large particles, then through a paper coffee filter if a cleaner, clearer cup matters to you. Do not squeeze all the sediment out of the grounds just to increase yield; that can make the drink cloudier and harsher.
Serve over ice and adjust with water or milk. A batch that tastes too bold can be diluted; one that seems weak may need a slightly higher coffee dose on the next attempt. Write down the grind, ratio and time so you can repeat a result you like.
Does cold brewing remove the caffeine from regular coffee?
No. Cold brewing regular coffee does not decaffeinate the beans. The low-caffeine result comes primarily from starting with beans that were decaffeinated before you brew. According to the U.S. FDA, a typical 8-ounce cup of decaf coffee may still contain about 2–15 milligrams of caffeine; the exact amount in a homemade cold-brew serving can vary with beans and brewing concentration.
How does decaf cold brew taste?
Decaffeination changes the coffee material before roasting and brewing, and beans differ in roast, freshness and processing method. Some decaf batches taste softer or less aromatic; others can be excellent. A fresh bag, reasonable grind and measured ratio matter more than assuming every decaf coffee will taste the same.
Frequently asked questions
Can I use preground decaf? Yes. Coarser preground coffee is easier to filter, but use what you have and adjust filtering time.
Do I need special decaf cold-brew beans? No. Ordinary decaffeinated coffee beans or grounds can be brewed cold.
Can decaf cold brew affect sleep? It contains much less caffeine, not necessarily zero; people especially sensitive to caffeine may still notice an effect.
How long should I keep a batch? Store it covered and chilled, use clean utensils, and follow food-safety precautions. For best flavor, make small batches you will drink within a few days.
More cold brew help
See How to Make Cold Brew for the core technique and our cold-brew sour and bitter troubleshooting guide.
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