How to Use and Care for a Bamboo Matcha Whisk (Chasen)

A bamboo matcha whisk, or chasen, is the tool that turns matcha powder and water into a smooth, frothy cup. To use it, soak the tines in warm water, whisk briskly in a W motion for 15 to 20 seconds, then rinse, dry and rest it on a whisk holder. Those few habits are what keep a chasen in good shape for longer.

What is a chasen?

A chasen is a traditional Japanese whisk cut from a single piece of bamboo. The bamboo is split into many fine tines, usually between 80 and 120, which curve outwards at the tips. The Nokū bamboo whisk has 100 to 120 tines. More tines mean a finer, creamier foam, which is why a chasen works so much better than a spoon or a regular kitchen whisk.

How to use a bamboo matcha whisk

1. Soak first. Dip the tines in warm water for about a minute. Dry bamboo is stiff and can snap, while soaked bamboo bends.
2. Sift the matcha. Sift 1 to 2 g of ceremonial matcha into a wide bowl so there are no clumps.
3. Add water. Pour in 60 to 70 ml of water at about 75 to 80°C. Boiling water makes matcha bitter.
4. Whisk in a W motion. Hold the whisk upright and move your wrist quickly back and forth in a W or zig-zag shape for 15 to 20 seconds. Keep the tines just off the bottom of the bowl.
5. Finish on top. For the last few seconds, lift the whisk slightly and whisk across the surface to make a fine, even foam.

A wide bowl makes this much easier, because the whisk needs room to move. See our floral and bowtie matcha bowls. For lattes, whisk the matcha with a little water first, then add milk.

How to care for your chasen

A chasen is a natural product, so a little care goes a long way. These three habits matter most.

1. Soak it in warm water before every use

Dry bamboo tines are brittle. Soaking them in warm water for about a minute softens the bamboo so the tines flex instead of breaking while you whisk. Use warm water, not boiling.

2. Dry it fully before storing

After whisking, rinse the whisk under warm water until the water runs clear. Do not use soap, as bamboo absorbs it and it can affect the taste of your matcha. Shake off the water and let the whisk dry completely in the open air before putting it away. A damp whisk in a closed box or drawer can develop mould.

3. Rest it on a whisk holder

A whisk holder, or kusenaoshi, supports the whisk from the inside so the tines keep their curved shape as they dry. Without one, the tines slowly bend inwards and the whisk stops frothing as well. Rest the whisk on the holder after every use. We have a floral ceramic whisk holder and a soft pink whisk holder.

Things to avoid

• Using the whisk dry, without soaking it first
• Pressing hard against the bottom of the bowl
• Washing it with soap or in the dishwasher
• Storing it wet, in a closed container or in direct sun
• Leaving it lying on its side, which flattens the tines

When to replace your whisk

A few broken tines are normal over time. When several tines have snapped or the whisk no longer makes a fine foam, it is time for a new one. With daily use and good care, a chasen stays in good shape for a long time.

Do you need a bamboo whisk?

For the smoothest, frothiest matcha, yes. A milk frother or a shaken jar works in a pinch, especially for lattes. See how to make matcha without a whisk. But for traditional matcha, nothing gives the same texture as a chasen.

Frequently asked questions

Should I soak my bamboo whisk before using it?

Yes. Soak the tines in warm water for about a minute before every use. It softens the bamboo so the tines bend instead of breaking.

How do I clean a bamboo matcha whisk?

Rinse it under warm water until the water runs clear, without soap. Then shake off the water and let it dry completely before storing.

Why do I need a whisk holder?

A whisk holder keeps the tines in their curved shape while the whisk dries. Without one, the tines slowly bend inwards and the whisk froths less well.

Why is my whisk going mouldy?

It was probably stored before it was fully dry. Always let your whisk air dry completely, ideally on a whisk holder, before putting it away.

How many tines should a matcha whisk have?

Most chasen have between 80 and 120 tines. A whisk with 100 to 120 tines, like ours, makes a finer, creamier foam and is a good all-round choice for both traditional matcha and lattes.

Get everything you need

Shop the Nokū bamboo matcha whisk, or browse all our matcha tools. Starting from scratch? Our matcha gift sets include ceremonial matcha, a bowl, a bamboo whisk, a whisk holder, a scoop and a sieve.