Someone on Twitter told me that there was a new Japanese grocery store opening in his/her neighbourhood, a Satsuki one. And they are selling tea in cans an Oolong tea from a brand named Pokka (?).
I saw this one by them but it’s in a bottle not a can. However I’ve seen cans too, green tea ones. Never had any and likely won’t. I don’t like cold tea.
Asia is full of bottled teas like this. All I can say is that some are awful, some are excellent but not really tea, and some are excellent tea. In my completely unhumble opinion, the bottle is no guide.
And cold tea has everything hot tea has, except heat. It seems such a little thing to hold against it!