I had this tea at a dinner with the Samovar founder’s brother. It was brewed in a Japanese side handled pot with a high leaf to water ratio and low temp (160F?). The experience was like nothing I have ever had before. To say it was an intense and concentrated blast of savory (umami) would be an understatement.
That unique and concentrated umami flavor was mouth puckering without being bitter (thanks to the low water temp and short steep time). It gave me a new appreciation for green tea and a flavor to chase in every other green since. It was not a cup of tea to sip serenely, it was an intense and deeply gratifying experience. Nothing I have had since compares.