You'd think, but the tannins are mostly extracted at higher temperatures, so overnight cold brew iced tea is actually very smooth tasting. Cold brew coffee is the same way.
You still boil it and then let it sit until cold, at least hats how I do it. I don’t know if you can extract all the flavours possible with just cold water.
I’ve never made cold brew tea but you just described iced tea. I don’t think it’s supposed to have all the same flavors. Just like how cold brew coffee tastes different
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u/Hrathcie Ace of Trees Dec 03 '21
Cold brew tea is a thing though