6 Matcha Myths That I See On Reddit (And What Is Actually True)

Several commonly repeated matcha beliefs circulating online are either partially wrong or missing important context. The W or M whisking motion is not mandatory. Matcha mixed with milk and sugar is perfectly acceptable unless your goal is health benefits. Matcha clumping is not a quality indicator. And three-day-old batched matcha is a genuinely bad idea backed by direct experimentation. This piece works through six of the most persistent misconceptions and explains what is actually true about each one.

Behind The Leaves #43

Myth 1: You Must Whisk Matcha in a W or M Motion

The W and M motion advice is real, but it is not universal. It originates from the Urasenke tea school and is one specific approach to creating a thick, frothy layer of bubbles. The Omotesenke school uses a circular motion instead, producing a different and equally valid result with less froth and bubbles covering only part of the surface.

The actual objective of whisking is to fully dissolve the matcha powder in the water with no dry clumps remaining. Any motion that achieves that is correct. If you also want significant foam, an up-and-down motion that gradually slides left and right across the bowl works well and is considerably easier than the M or W shape, particularly for beginners. Starting with the W or M motion as a beginner makes the process unnecessarily awkward.

The amount of foam also affects taste in a meaningful way. A thick layer of froth softens astringency and bitterness, making the drink more approachable, but it also partially obscures the umami and sweetness. For lower-quality matcha, more foam is generally better. For high-quality matcha where you want to taste everything the leaf offers, less foam tends to be preferable.

Myth 2: You Cannot Mix Matcha with Sugar and Milk

This is a stance, not a fact. Mixing matcha with milk and sweetener reduces the intensity of the matcha's umami and sweetness, and there is an argument that it dilutes the craft that went into producing a premium tea. That argument has some validity. But it is also true that coffee enthusiasts make lattes without being considered to have disrespected the coffee.

The one case where mixing with sugar and milk does defeat a legitimate purpose is health.

Many of the documented health benefits of matcha relate to the prevention of chronic diseases including obesity, liver disease, heart disease, and stroke. Adding sugar and milk works against those specific outcomes. If health is your reason for drinking matcha, plain matcha with water is the correct choice. If enjoyment of flavour is your reason, a matcha latte is completely fine.

Myth 3: Matcha Clumping Means It Is Low Quality

Matcha powder is extremely fine and made up of particles of uneven sizes. Static electricity, humidity, and handling all cause it to clump, regardless of quality. Even premium matcha from the most reputable producers will clump under the wrong storage conditions. Clumping is a storage and handling issue, not a quality signal.

What clumping does do is make the powder harder to dissolve evenly in water. The practical solution is not necessarily sifting. Making a paste first by adding a small amount of water to the dry powder, mixing it to a smooth consistency, and then adding the remaining water produces a more consistent result than sifting and is faster and easier to clean up. Sifting is useful but not essential.

Myth 4: You Must Always Sift Your Matcha

Sifting matcha before brewing does help. It breaks up clumps and makes the powder easier to dissolve evenly. But it adds time, requires an additional tool that can be fiddly to clean, and is not the only way to achieve a lump-free brew.

The matcha paste method is more effective in practice. Adding a small amount of water to the dry powder and working it into a smooth paste before adding the remaining water eliminates clumps without the overhead of sifting. This is the approach recommended for everyday use, particularly in cafe settings where efficiency matters.

Myth 5: Matcha Is Originally from China

This one requires some nuance. The powdered tea tradition that Zen monk Eisai brought to Japan in 1187 did originate in China. But that drink is not matcha in any meaningful sense. It was not shaded, not deveined, not stone-ground to the standard we expect today. It was bitter, astringent, and significantly different in character to anything we would call matcha now. The tradition also died in China while surviving and evolving in Japan.

The shading process that gives matcha its distinctive umami and vibrant green colour, the de-veining of the tencha leaves, and the stone-milling technique that produces the 10-micron powder we use today: all of these developments happened in Japan over centuries. Saying matcha is from China because its distant ancestor was Chinese is similar to saying American football is from the United Kingdom because rugby and soccer are British. The end product is something sufficiently distinct that the origin attribution does not hold up.

Myth 6: Batching Matcha for Three Days Is Fine

This is the most consequential misconception for anyone running a cafe. It is not fine. Direct experimentation confirmed that within 24 hours, batched matcha refrigerated and stored properly shows no meaningful taste degradation. That is the safe window for cafe operations. By 72 hours, the matcha has changed completely.

At three days, the aroma disappears, umami and sweetness drop sharply, astringency and bitterness take over, and the colour shifts from green to brownish-green. This is visible oxidation, and it is not subtle. Any customer with matcha experience would notice it immediately. Three-day batching is not an operational efficiency: it is a quality failure that customers will detect.

Key Takeaways

The W and M whisking motion is one technique, not the only technique. It comes from the Urasenke school. The Omotesenke school uses a circular motion. Both produce good results. Beginners should start with a simple up-down motion.

Matcha clumping is a storage and handling issue, not a quality indicator. Even the best matcha clumps under humid or static-prone conditions. The paste method is a better solution to clumping than sifting in most everyday situations.

Mixing matcha with milk and sugar is acceptable for flavour enjoyment but contradicts the health benefits. This is an honest distinction: the matcha latte format is fine as a drink, but the health compounds and the sugar work against each other.

Matcha is a Japanese product, not a Chinese one. The ancestor of matcha came from China, but the drink as we know it, with shading, de-veining, and stone-milling, was developed and refined in Japan over centuries. The Chinese tradition died out.

Twenty-four hours is the tested maximum for batched matcha. Beyond that, colour, aroma, and taste all degrade visibly. Three-day batching has been tested directly and produces a drink that no longer resembles quality matcha.

Insights From Yuki

One key observation is that the W and M motion debate is partly a schools-of-thought issue rather than an objective question. The framing of "you must do it this way" on Reddit reflects familiarity with one particular tradition without awareness that other equally legitimate traditions exist. This is very common in matcha communities online.

The stance on matcha lattes evolved over time. There was a period of holding a more purist position, reasoning that milk and sugar mask the qualities farmers and producers worked hard to create. The shift came from recognising that the same logic would apply to coffee lattes, which are widely enjoyed without being considered disrespectful to the craft.

In direct experimentation on the batching question, the 24-hour result was genuinely reassuring for cafe operations. The 72-hour result was the opposite: the colour change alone was alarming before any tasting. A drink that has turned brownish-green after three days in the fridge is not something that should be served, regardless of how well it was stored.

One key practical observation: the paste method for eliminating clumps consistently outperforms sifting in everyday use. It requires no additional equipment, nothing to clean beyond what you are already washing, and produces a smoother, more evenly dissolved matcha in the cup.

Q&A

Do you have to whisk matcha in a W or M shape?

No. The W and M motion comes from the Urasenke tea school and is designed to produce thick foam. The Omotesenke school uses circular motions and produces less froth. Any whisking motion that fully dissolves the matcha powder without leaving dry clumps is acceptable. Beginners are better served by a straightforward up-and-down motion.

Does matcha clumping mean it is bad quality?

No. Matcha powder clumps due to static electricity, humidity, and how it has been handled or stored. Even very high-quality matcha will clump under the wrong conditions. Making a matcha paste with a small amount of water before adding the rest is a more reliable way to handle clumping than sifting.

How long can batched matcha last in the refrigerator?

Up to 24 hours without meaningful quality loss. Beyond that, oxidation accelerates and by 72 hours the drink shows clearly degraded colour (brownish-green), significantly reduced aroma and umami, and increased astringency and bitterness. Three-day batching has been tested directly and does not produce an acceptable product.

About the author:

Yuki Ishii
Founder & CEO of Tealife
LinkedIn | YouTube

Yuki is the founder of Tealife, a Singapore-based Japanese tea company. He’s passionate about Japanese tea and spends his time testing, trying, and experimenting - then sharing what he learns through content to help people discover the depth of Japanese tea beyond just matcha.