This is just straight up false. I regularly brew black and herbal teas at 70-75°C (158-167°F) if I’m in a rush. It steeps long before cooling to a drinkable temperature. I haven’t tried brewing green tea this way but I doubt it’s much different.
Sun tea is brewed barely above ambient temperature (although that of course takes hours to steep).
This is just straight up false. I regularly brew black and herbal teas at 70-75°C (158-167°F) if I’m in a rush. It steeps long before cooling to a drinkable temperature. I haven’t tried brewing green tea this way but I doubt it’s much different.
Sun tea is brewed barely above ambient temperature (although that of course takes hours to steep).