Matcha is a micro-powdered tea product made from the leaves of covered cultivated tea trees after steam (or hot air) killing and drying and processed by grinding process, which is rich in various essential trace elements and nutrients and has high nutritional and health care value. Among them, the most critical process of matcha processing and production is the grinding of ground tea. The size of matcha tea powder particles directly affects the classification of matcha quality. The national standard of the People's Republic of China for matcha stipulates that the particle size requirement for Grade I and II matcha is D60≤18 μm. The particle size refers to the size of the particles, and the smaller the particles of matcha, the better the taste.
As a recognized leader in tea testing, Lifeasible can develop the best tea particle size testing solution to help customers quickly detect matcha particle size grades. This is of great importance for the grading of matcha tea during processing.
We offer the following methods for matcha particle size testing, including standard methods and other methods.
| Tea Particle Size Testing Methods | Description of Methods |
| Granular Molecular Sieve Particle Size Determination Method | This method uses a stainless steel sieve with a diameter of 200 mm as a standard sieve with different sizes of nylon cloth apertures. |
| Hyperspectral Imaging Technique | This method combines scanning electron microscopy and hyperspectral technology to acquire hyperspectral image data of matcha. It constructs a qualitative analysis model of image texture features and particle size classes of different grades of matcha to achieve the detection of matcha particle size classes. |
| Laser Particle Sizer | This method is stable, efficient, and convenient with obvious advantages in measuring matcha particle size. It is a good testing method. |
We offer a variety of methods to help customers solve their matcha particle size testing problems and to quickly determine the matcha particle size grade during processing to assess its quality. If you are interested in our solutions, please contact us for technical consultation and quotation.
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