I'm sending Plant Partaker samples of my kame and YM and after my brewing nightmare with both of them, I told him he needed to ask if he could use his ingenuitea with those tea. I don't know about that device. I found a trick to use for the YM that works until my kyusu arrives, but the kame is a different story. I don't want him to hate the tea when it is just a matter of brewing it correctly. For beginners, a thermometer is really important with these teas.
Plant Partaker: I forgot that you can go to Den's Teas and order a $3 sample pack. Also, please read this link before brewing your kame and use it as a guide when brewing it:http://www.o-cha.com/brewing-gyokuro.htm
YM is my new favorite morning tea, but I am not caring for the kame so much. It is my brewing, I'm sure. I followed the directions above, but I will keep trying.