Below is an update from Lu Ann of The Cup of Life.
How do you know what quality of matcha you are purchasing or drinking? I took advantage of my current matcha stash and did a fun experiment to show and explain the differences between two different grades of matcha. Check out the link to view the results!
You can find further details at http://www.theteacupoflife.com/2015/03/a-matcha-comparison-do-you-know-what.html.