The blends will be available on December 17, 2020, from Gin-Iro-Neko Tea Salon in Ginza and Animate stores that feature Gin-Iro-Neko Tea Salon products.
Seems like Noir has taken over the Phantom Thieves because Persona 5 Royal is brewing a tea collaboration with Gin-Iro-Neko Tea Salon where each member (and Goro Akechi) gets their own box of teabags with special blends based on their characters.
He also runs a YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza, and posts photos of his travels on Instagram.