How to Use a Cloth Coffee Filter: Japanese Nel Drip at Home

Paper filters strip out almost all of coffee’s oils. Metal filters let nearly everything through. A cloth filter sits in between, and that middle ground is why Japanese coffee houses have long prized it. The method is called nel drip, from “flannel,” and the cup it makes is round, velvety and very clean. Learning how to use a cloth coffee filter takes a little care: boil and season a new filter, brew with a slow, gentle pour, then rinse it and keep it wet and cold between uses. Skip that last step and the cloth goes stale fast.

Here is the whole routine, with an everyday recipe and a traditional kissaten-style one.

Key takeaways

• Boil a new filter for 5 to 15 minutes and rinse it well, so the coffee does not taste of fabric.
• Everyday recipe: about 20 to 25 g of medium-coarse coffee to 300 ml of water at 90 to 93 °C, over 4 to 5 minutes.
• Kissaten style uses much more coffee and cooler water, around 79 °C, for a small, intense cup.
• After brewing, rinse without soap and store the filter submerged in water in the fridge. Never let it dry out with oils in it.
• Replace it when it drains noticeably slower or smells off.

In this article

1. Why use a cloth filter?
2. Preparing a new filter
3. How to use a cloth coffee filter: two recipes
4. Cleaning and storage
5. FAQ

Why use a cloth filter?

If you like the clarity of a paper pour-over but wish it had more texture, cloth is the answer. Coffee professionals have described the result as velvety and even “brooding” and autumnal. It suits medium to dark roasts especially well, which is one reason it became a classic in Japanese kissaten coffee houses.

Preparing a new filter

1. Boil it. Simmer the new cloth in plenty of water for about 5 to 15 minutes to remove sizing and any fabric taste.
2. Rinse it several times in clean water.
3. Season it (optional). Some brewers soak the new filter overnight in water with a spoon of used coffee grounds, so the first real brew does not taste of cloth.
4. Check the holder. Many filters hang from a wire ring or a wooden handle. Wooden parts should not be left wet or near heat, so store them separately.

How to use a cloth coffee filter: two recipes

Before either recipe, take the filter from the fridge, rinse it with hot water, then wring it gently in a dry towel. A soggy filter slows the flow and dilutes the first drops. Pour hot water through it into your server to warm both.

Recipe 1: everyday nel drip (one large mug)

1. Add the coffee and level the bed with a gentle shake.
2. Pour the bloom water slowly in the center until the bed is just damp. Wait 30 to 40 seconds while it swells.
3. Pour in small, slow spirals from the center outward, keeping the water level only 1 to 2 cm above the bed.
4. Stop when you reach 300 ml in the server and let it drain. Do not squeeze the cloth to speed it up.

Recipe 2: kissaten-style, thick and sweet (one small cup)

This style comes from Japan’s traditional coffee houses, where a skilled master pours almost drop by drop. One version published by James Freeman of Blue Bottle Coffee uses:

The cooler water and huge dose give a short, intense, syrupy cup with very little bitterness. It is deliberately underextracted, so it tastes very different from Western pour-over. Start with the “string of pearls” pour: a stream so slow it breaks into drops.

Pouring tips

• A gooseneck kettle makes slow pours far easier.
• Keep the kettle’s water level consistent between brews; the flow changes as it empties.
• No thermometer? In a closed kettle, freshly boiled water cools roughly 10 °F a minute at first, so a few minutes off the boil gets you near 175 °F.

Cleaning and storage: the part that matters most

Coffee oils trapped in the fabric turn rancid when they dry and air reaches them. That is why the golden rule is: never let a used filter dry out.

1. Empty and rinse right after brewing with hot water. No soap or detergent, which the cloth absorbs.
2. Store it wet. Put it in a clean jar or cup, fully covered with water, in the fridge. Change the water daily.
3. Deep clean weekly. Simmer it in plain water for a few minutes.
4. Going away? Squeeze out excess water, seal it in a bag and freeze it. Thaw and rinse before use.
5. Replace it when it drains noticeably slower, stains heavily or smells off. Guides commonly suggest somewhere around 50 to 100 uses, though well-kept filters can last longer.

Troubleshooting

Coffees that shine through cloth

Cloth flatters body and sweetness, so choose coffees with depth. Our Sumatra from Aceh is earthy and syrupy with dark chocolate and dried fruit, a natural for nel drip. For a classic dark kissaten-style cup, French Roast brings bittersweet chocolate and low acidity. Brazil Santos is a softer, nutty option for the everyday recipe. Every bag is roasted 1 to 5 days before delivery; buy whole beans so you can grind on the coarse side. Browse more single origins.

Cloth coffee filter FAQ

Do cloth coffee filters remove oils?

Partly. They hold back more oil than metal filters but less than paper, giving a fuller body than paper with very little sediment.

Can I use soap on a cloth coffee filter?

No. Fabric absorbs detergent and passes the taste into your coffee. Use hot water and occasional boiling.

Why does my cloth filter smell sour?

Usually because it dried with coffee oils in it, or the storage water was not changed. Boil it; if the smell stays, replace it.

Can I use a cloth filter in a regular pour-over cone?

Yes. Cloth filters are sold to fit common cones and even some drip machines. The care routine is the same.

Sources

1. Pro tips: a better nel drip coffee, Blue Bottle Coffee.
2. Hario Woodneck nel drip up close, Coffee Chronicler.
3. Nel drip brewing guide, My Coffee Explorer.
4. Daibo Coffee nel filter: care instructions, Kurasu Kyoto.
5. A fine drip, Saveur.

Facts checked in October 2026.

Keep reading: Japanese kissaten · V60 pour-over guide · Single origins