Wow. This tea is unlike anything I've ever tried, and perhaps ever will. You MUST brew to very specific guidelines; Samovar has good ones (found here https://www.samovartea.com/how-to-brew-gyokuro-high-end-japanese-green-tea/), with a long cold-brew first; this first infusion will truly disrupt your whole belief system in teas. You may not know if you like it or hate it. But, I promise it will grow on you and you will soon be craving it! For the following infusions but I prefer less water (100 mL, 3.5 oz) and slightly cooler second and third steeps (50C, 120F) with linger times (2.5 and 3 min, respectively) then increasing to 70C (160F) and 2.5 min for the fourth infusion, and finally 70C (175F) and 2.5 minutes for the fifth infusion. The theanine and caffeine synergize to give a calm and happy energy. This tea will likely become part of my regular rotation.