Why Does Your Matcha Taste Bitter?
If your matcha tastes bitter, you are not alone. It is one of the most common complaints we hear and it usually comes down to one of a few things.
One thing worth knowing first is that matcha does not actually dissolve in water the way sugar or coffee does. It stays suspended in the liquid as fine particles, which is why it settles at the bottom if you leave it sitting too long. Understanding this makes a lot of the advice below make more sense.
Your water is too hot
Matcha has two types of compounds that matter here. The good ones, amino acids like L-theanine, give you that smooth umami sweetness. The bitter ones, catechins and caffeine, are what make matcha taste harsh.
The problem is heat. The bitter compounds extract much faster at high temperatures. So boiling water pulls out way more bitterness than you want before the good stuff has a chance to balance it out.
75 to 80°C is the sweet spot because you get enough extraction for flavor and sweetness without the bitterness taking over. We brew at 80°C and it makes a noticeable difference. If you do not have a thermometer, let your boiled water sit for about 2 to 3 minutes before using it.
You skipped the paste step
If your water temperature is right and it still tastes bitter, your technique is probably where to look. Sift your matcha first to break up any clumps, then try mixing it with a small amount of water until it becomes a smooth paste before adding the rest. It takes an extra thirty seconds but it matters more than you think.
When you skip this step, dry powder can get trapped inside tiny clumps. When you drink it, those clumps burst and hit you with an intensely bitter, chalky, and grassy taste.
You are using too much
More matcha does not mean better matcha. It just means more bitter. Getting the ratio right matters more than the exact amount. We use 2 grams of matcha to 60ml of water as our baseline and adjust from there.
A kitchen scale makes a real difference here. Teaspoons are inconsistent because matcha density varies, so what looks like the same amount each time often isn't. Weighing takes the guesswork out of it.
Your matcha is culinary grade
We will be honest here. We tried our own culinary grade matcha straight and it was noticeably more bitter and less creamy than our ceremonial grade. That is not a flaw, culinary grade is designed for baking and cooking where other ingredients balance it out. Drinking it straight or in a latte is a different story.
Your matcha has been sitting open too long
This one is less common but worth checking. Matcha oxidizes once opened and if it has been sitting unsealed for a while, it can taste flat. Bitterness from storage is usually more of a dull, stale kind rather than sharp and intense.
If you have tried everything above and your matcha still tastes bitter, the grade of your matcha might be worth looking at. Starting with a good one makes everything easier, you can find ours here.