Spend enough time preparing matcha for a living and you start to hear the same handful of misconceptions on a loop. A few are harmless enough, but others quietly steer people into brewing their matcha badly, or into avoiding it for reasons that don't hold up. Here are five that are worth setting straight.
Myth 1: Matcha is just green tea in powder form
Not really. Yes, matcha and everyday green tea come from the same plant, but the way each is grown and processed diverges completely. Matcha leaves spend weeks under shade before harvest, get steamed, and are then stone ground into a fine powder, whereas ordinary green tea leaves are usually grown in full sun, simply dried, and steeped rather than consumed whole. It's that shading step in particular that loads matcha with its higher levels of chlorophyll, L-theanine, and its distinctive umami character.
Myth 2: Matcha is loaded with far more caffeine than coffee
This hinges heavily on how much you use and how you prepare it. A standard bowl of matcha lands broadly in the same territory as a cup of coffee for caffeine, occasionally a little under, though it shifts with the grade and the amount of powder. The bigger contrast is in how the caffeine feels, since matcha's L-theanine tends to deliver a calmer, more even alertness rather than the sharper jolt coffee gives.
Myth 3: All matcha is basically the same, so cheap powder is fine to drink straight
Grades differ a great deal, and that gap shows up most when you're drinking matcha on its own instead of blending it into something like a latte. Culinary grade, frequently grown without shading and milled more coarsely, leans bitter and astringent. Ceremonial grade is grown and processed specifically to be drunk straight, with a smoother, naturally sweeter taste that asks for neither sugar nor milk to be enjoyable.
Myth 4: You have to whisk for ages to build foam
Whisking longer doesn't automatically mean better foam. Technique counts for far more than time on the clock. A brisk, decisive W or M motion for somewhere around fifteen to twenty seconds usually gives you a fine, even foam, while slow circular stirring will leave clumps behind no matter how long you keep at it.
Myth 5: Matcha spoils fast, so how you store it makes little difference
Matcha is vulnerable to light, heat, humidity, and exposure to air, all of which speed up the loss of flavour. Keeping it properly, sealed in an airtight container, out of the light and away from heat sources like the stove, makes a clear difference to how long it stays fresh. An opened tin stored well should still taste good weeks later, whereas one left sitting in the sun can lose its vibrancy in a matter of days.
Getting these distinctions right does more than give you something to say at a dinner party. It genuinely raises the quality of the matcha you make at home.