Why are there lumps in my matcha?
Matcha is really just pure tea leaves that have been dried and stone-ground into a fine powder. This powder tends to naturally form clumps due to static electricity, so there is nothing to worry about if your powder has these clumps. If you add water to this powder and whisk it as-is, the matcha drink will end up with some clumps left in it.
Why should I use a strainer when I make matcha?
This ensures that your matcha drink ends up smooth and tasty, with no lumps. Use a tea strainer or a special matcha furui to sift the powder before adding water and whisking.