Short answer
A matcha whisk, called a chasen, is a hand-carved bamboo tool with fine curled tines that blends matcha powder and water into a smooth, frothy tea. Whisk in a quick M or W motion, rinse after use and dry it on a holder.
A matcha whisk, called a chasen in Japanese, is a small hand-carved bamboo tool with many fine curled tines that blends matcha powder into water until smooth and frothy. To use a matcha whisk, wet the tines, whisk the powder in a quick M or W motion with a loose wrist, then rinse the chasen and dry it upright.
What is a matcha whisk?
A matcha whisk is a bamboo tool called a chasen, used to mix matcha powder with water so that no lumps remain and a fine foam forms. It is cut from a single piece of bamboo, with a handle at one end and dozens of thin tines at the other.
Chasen are traditional Japanese tea tools, used in the tea ceremony for centuries. The tines curl inward at the tips, which helps them move through the bowl without scratching it and trap air as they whisk.
How is a bamboo matcha whisk made?
A chasen is carved by hand from one piece of bamboo, which is split into many thin strips, shaved and curled inward. The skill lies in making the tines even, thin and springy.
The bamboo is cut and the top part is split into narrow strips. Those strips are shaved thin, with the outer ones forming the larger loop and the inner ones forming the small core. The tips are then curled and tied with thread to hold their shape. Traditional chasen come from regions of Japan with a long history of tea utensils, and mass-made versions are also sold in many countries.
How many prongs does a matcha whisk need?
Most matcha whisks have between 80 and 120 prongs, and the most common counts are 80 and 100. More prongs create finer foam, and fewer prongs are easier to clean and cheaper.
| Prongs | Best for | Notes |
|---|---|---|
| 48 to 64 | Thick matcha, koicha | Fewer, sturdier tines |
| 80 | Everyday matcha and lattes | A good all-round choice |
| 100 | Thin tea and fine foam | Common for ceremonial matcha |
| 120 | Very fine foam | Delicate, needs care |
For a first whisk, an 80 or 100 prong chasen is a sensible pick.
How do you use a matcha whisk?
You use a matcha whisk by wetting it, then whisking sifted matcha with hot water in a quick M or W motion until a fine foam forms. Keep the wrist loose and do not scrape the bottom of the bowl.
- Soak the whisk tines in warm water for 10 to 20 seconds, then shake off the excess.
- Sift matcha into a wide bowl and add about 70 ml of water at roughly 80°C.
- Hold the chasen lightly and whisk fast, moving your wrist, not your whole arm.
- Whisk for 15 to 20 seconds until the surface is covered in tiny bubbles.
- Lift the whisk out slowly, finishing in the centre, and drink straight away.
How do you clean and store a matcha whisk?
Rinse the chasen under warm running water straight after use, shake it dry and stand it upside down on a whisk holder. Do not use soap or put it in a dishwasher.
A ceramic holder, called a kusenaoshi, keeps the tines in shape while the whisk dries. Dry it fully before storing it, because trapped moisture can lead to mould. Rinsing right away prevents powder from drying onto the tines.
What can you use instead of a matcha whisk?
A handheld milk frother, a small jar with a lid, or a fork and a sieve can stand in for a matcha whisk. None foam quite as finely as bamboo, but all of them dissolve the powder.
- Electric milk frother: fast and cheap, and the best substitute for lattes.
- Jar with a tight lid: shake the powder and water hard for 20 seconds.
- Small balloon whisk: a metal whisk works but can scratch some bowls.
- Fork: the weakest option, but it is better than stirring with a spoon.
What mistakes damage a matcha whisk?
The most common mistakes are using a dry whisk, scraping the bowl and leaving the whisk wet. Each one shortens the life of the bamboo.
- Whisking with dry tines, which makes them brittle and prone to snapping.
- Pressing hard on the bottom of the bowl, which splays the tines.
- Washing with detergent, which leaves a taste in the bamboo.
- Storing the whisk wet or in a closed drawer, which invites mould.
- Leaving it to dry flat so the tines flatten.
What is the difference between a chasen and a milk frother?
A chasen is a hand-whisked bamboo tool that makes fine, even foam from matcha and water, while a milk frother is an electric whisk that works faster and suits lattes. Each has a place.
| Bamboo chasen | Handheld frother | |
|---|---|---|
| Power | Your wrist | Battery motor |
| Foam | Fine and creamy | Larger bubbles, quicker |
| Care | Rinse, dry on a holder | Rinse the whisk head |
| Lifespan | Months to a year | Years, until the motor fails |
| Best for | Thin tea, tradition | Lattes, busy mornings |
Many home drinkers own both: the chasen for plain matcha and the frother for milk drinks.
What else comes with a matcha whisk set?
A matcha set usually includes a bamboo whisk, a bamboo scoop and a bowl, and sometimes a whisk holder and a small sieve. These pieces make the process repeatable.
- Chashaku: a bamboo scoop that holds about half a teaspoon of powder.
- Chawan: the wide tea bowl that gives the whisk room.
- Kusenaoshi: a ceramic whisk holder that keeps the tines in shape as they dry.
- Sieve: a fine mesh strainer to sift out lumps.
You can start with just a whisk and any wide bowl, and add the other pieces later.
How do cafes use a matcha whisk?
Many cafes whisk matcha with a bamboo chasen or an electric frother before adding milk, because the powder must dissolve fully in a small amount of water. Method differs from shop to shop.
Out of Office Coffee + Bakery in Markham lists a Matcha Latte, Vanilla Matcha, Double Matcha and Strawberry Matcha in its recorded menu, as of November 2026. Its Instagram bio describes premium matcha from Kyoto. Which tools it uses to whisk the matcha is not recorded in the sources, and no prices are published. The menu page shows the recorded list, and the hours and location page shows opening times. This guide is independent and takes no orders.
Common questions
How many prongs should a matcha whisk have?
Common chasen have 80 or 100 prongs, and some have more. Higher counts make finer foam and suit thin tea, while 80 is a good all-round choice. Both work well for lattes and everyday matcha.
Can you use a matcha whisk for a latte?
Yes. Whisk the matcha with a little hot water first, then add steamed or cold milk. The chasen blends the powder smoothly, and you can finish with a handheld frother for milk foam.
Do you need to soak a bamboo whisk first?
A short soak in warm water, about 10 to 20 seconds, softens the tines and prevents them from snapping. Shake off the water before you whisk. Skipping this step makes the bamboo more brittle.
How long does a bamboo matcha whisk last?
With regular use and careful drying, a chasen lasts a few months to a year or more. Tines eventually splay, break or discolour. Replace the whisk when the tips stop blending the powder smoothly.
Everything practical is on the home page: OUT OF OFFICE COFFEE + BAKERY hours, menu and directions.
This article is general information from an independent guide, not from OUT OF OFFICE COFFEE + BAKERY itself. For the store’s current details see hours and location.