ʻO ka wili ʻana ka hana nui loa i ka hana ʻana i ka matcha, a mīkini wili kī pōhaku matcha he mea paahana koʻikoʻi no ka hana ʻana i ka matcha. ʻO ka mea maka o Matcha he ʻano kī liʻiliʻi ʻaʻole i ʻōwili ʻia. ʻElua mau huaʻōlelo koʻikoʻi i kāna hana ʻana: uhi a me ka mahu. 20 mau lā ma mua o ka ʻohi ʻia ʻana o ka puna puna, pono e hoʻonohonoho ʻia kahi scaffolding, uhi ʻia me nā pale ʻohe a me nā pale mauʻu, me ka nui o ka pale ʻana ma mua o 98%. Aia kekahi mau uhi maʻalahi, i uhi ʻia me ka gauze plastik ʻeleʻele, a hiki i ka helu shading ke hiki wale i 70 ~ 85%. Ua hōʻoia nā hoʻokolohua ʻo ka hoʻohana ʻana i nā mea o nā mea like ʻole a me nā waihoʻoluʻu e malu ai ke kī he mau hopena like ʻole.

"Hoʻololi ka uhi ʻana a me ka uhi ʻana i nā mea kūlohelohe e like me ka ikaika o ka māmā, ka maikaʻi o ka māmā, a me ka mahana, no laila e pili ana i ka hoʻokumu ʻana i ka maikaʻi o ke kī. ʻAʻole loaʻa ka B-santalol i ke kī ākea. Ma waho aʻe o ka ʻike kiʻekiʻe o nā pūhui aliphatic haʻahaʻa haʻahaʻa, nā mea ʻala ʻē aʻe He haʻahaʻa haʻahaʻa loa ka ʻike ma mua o ke kī o ka malu". Ua hoʻonui nui ʻia ka chlorophyll a me nā waikawa amino o ke kī ʻōmaʻomaʻo i uhi ʻia. ʻO nā carotenoids he 1.5 mau manawa ma mua o ka mahiʻai ākea, ʻo ka nui o nā amino acids he 1.4 mau manawa ma mua o ka mahi ʻana i ka māmā maoli, a ʻo ka chlorophyll he 1.6 mau manawa ma mua o ka mahi māmā maoli. Ma kēia ʻano, ʻo ka kī ʻōmaʻomaʻo i wili ʻia e kaMea wili lau kī ʻoi aku ka ʻono.

Kohi ʻia nā lau kī hou a maloʻo i ka lā hoʻokahi, me ka hoʻohana ʻana i ka aMīkini mahu kī. Ua hōʻike nā haʻawina i ka wā o ke kaʻina hana mahu, cis-3-hexenol, cis-3-hexene acetate, linalool a me nā oxides ʻē aʻe i ke kī e hoʻonui nui ʻia, a me ka nui o ka A-ionone, B-ionone a me nā mea ionone ʻē aʻe, nā precursors. ʻO kēia mau mea ʻala he carotenoids, e hāʻawi i ka ʻala kūikawā a me ka ʻono o Matcha.