How to Make Cold Brew With Cheesecloth (No Filter Needed)
You don’t need a $40 cold brew system to make good cold brew at home. A mason jar, coarse-ground coffee, and a few layers of cheesecloth will get you there. I’ve made it this way more times than I can count when I’m traveling or too lazy to dig out my proper setup, and the coffee comes out clean as long as you respect two things: grind size and steep time.
What You Need
- Coarsely ground coffee (think sea salt, not sand)
- Filtered water, room temp or cold
- A large jar or pitcher
- Cheesecloth (double or triple layered)
- A rubber band or kitchen twine
- A second container for straining
The Ratio That Actually Works
Use 100g of coffee to 1 liter of water for a concentrate you’ll dilute later. That’s roughly 1:10. If you want to drink it straight without cutting it with water or milk, go closer to 1:15. The SCA built its brewing standards around hot extraction, so they don’t translate directly to cold brew. But the ratio logic still holds: more contact time at cold temps means you can use less coffee per liter than you’d think.
Step-by-Step
- Grind coarse. This is the step people botch. Too fine, and your cheesecloth turns into a sludge trap. You’ll get grit in your final cup no matter how many layers you use.
- Combine coffee and water in your jar. Stir it once to make sure everything’s saturated. No need to stir again.
- Cover and steep in the fridge for 16-18 hours. Cold extraction pulls flavor compounds slower and more selectively than hot water does. That’s the whole reason cold brew tastes smoother and less acidic — cold water pulls fewer bitter compounds and less of the acidic content that hot brewing extracts almost immediately.
- Set up your cheesecloth. Layer it three or four times over your second container, letting extra fabric hang over the edges. Secure it with a rubber band if the mouth of the container makes that easy.
- Pour slowly. Don’t dump the whole jar at once. You’ll blow past the cloth’s capacity and get grounds in your cup. Pour in stages, letting it filter through.
- Squeeze gently at the end. Once most of the liquid’s through, gather the cheesecloth and give it a light squeeze to get the last bit of concentrate out. Don’t wring it hard. You’ll push fines through the fabric.
- Store the concentrate in the fridge for up to two weeks. Dilute 1:1 with water or milk when you’re ready to drink.
The Real Bottleneck: Grind Size, Not the Cloth
Everyone blames the cheesecloth when their cold brew comes out muddy. It’s almost never the cloth’s fault. It’s the grind. A blade grinder gives you an uneven mix of dust and chunks, and that dust sails right through cheesecloth no matter how many layers you stack. If you’re serious about cold brew and don’t already have a burr grinder, that’s the upgrade that actually matters here. Not a fancier filter.
When I ran cheesecloth against a paper filter and a fine mesh strainer side by side using the same batch, the cheesecloth version had the most body. Some fine sediment gets through no matter what, and that’s actually part of what people like about cold brew’s mouthfeel. Want it glass-clear? Use paper. Want it to taste like it has some weight to it? Cheesecloth is the right call.
Cheesecloth vs. Other Filtering Methods
| Method | Clarity | Body | Effort |
|---|---|---|---|
| Cheesecloth (3-4 layers) | Medium | Full | Low |
| Paper filter | High | Light | Medium — slow drip, needs patience |
| Fine mesh strainer alone | Low | Full, sometimes gritty | Lowest |
| Nut milk bag | Medium-high | Medium | Low |
Common Mistakes
- Single-layer cheesecloth. One layer does almost nothing. Go three or four layers minimum, or double up two pieces.
- Steeping too short. Six or eight hours isn’t enough at fridge temps. You need the full 16-18 hours.
- Using pre-ground coffee from the grocery store. It’s usually ground for drip machines, way too fine for this method. Grind your own, coarse, right before you brew.
- Squeezing the cloth too aggressively. You’ll push fine particles through and undo all the filtering you just did.
What I’d Actually Buy
If you’re going to make cold brew regularly, a decent burr grinder fixes most of the “gritty cold brew” complaints I hear. A scale helps too. Eyeballing 100g of coffee is how people end up with watery or over-strong batches — I’ve done it myself more than once before I started weighing things.
- Fellow Ode Gen 2 — This is the grinder I recommend most for anyone serious about cold brew at home. It’s built for consistent coarse grinds without the dust that blade grinders throw off, which is exactly what keeps cheesecloth filtering clean.
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- Bonavita Digital Scale — I use this for dialing in ratios instead of guessing. For a 1:10 cold brew, being off by 10g of coffee changes the cup noticeably.
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- Fellow Atmos Vacuum Canister — Keeps your ground coffee fresh between brews, which matters more for cold brew than people think. You’re extracting for 16+ hours, and stale grounds show up as flat, muddy flavor.
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- Bonavita Gooseneck Kettle — Not needed for cold brew specifically, but if you’re already investing in gear, this crosses over well for pour-over mornings when you’re not batching cold brew.
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Cheesecloth costs about two dollars and does the job. Don’t let anyone convince you that you need a specialty cold brew maker to get good coffee out of your fridge overnight.
— Nora Voss, Home Barista & Equipment Reviewer
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