And for those of you who only know temperatures based on brewing tea or coffee:
123F: Probably insufficient for even fairly delicate teas. You could probably make “sun tea” at this temperature by leaving tea in room temperature water to be heated by the sun, but this is not recommended as anything below ~130F is considered the danger zone for bacterial growth.
170F: This is the appropriate temperature for delicate or green teas to preserve flavor, antioxidants, and prevent bitterness.
200F: An acceptable temperature below boiling (212F) for black teas and coffee where overextraction is minimal.
109F: Unacceptable for tea brewing, barely above body temperature.