So, lots of people like to make “sun tea” in warmer weather. To wit, put a glass pitcher in the sun with a bunch of tea bags or loose tea of your choice, cover, and wait a few hours. Result: warm tea that can then be sweetened and served over ice. Now, presumably, the reason for brewing in the sun is to generate some warmth in the water to better brew the tea in a reasonable amount of time, while avoiding turning on the stove on a hot day. Tea will “brew” in room temperature water, but it takes a long time.
Question: Why not put the water and tea in a BLACK container? Wouldn’t this heat up much faster in the sun and therefore brew faster? You wouldn’t have to let it get very hot (thus necessitating more ice or warmer iced tea in the end). Sure, the tea looks pretty in a nice glass container all lit up by the sun, but if we’re looking for practicality, a black container would win, hands down. What’s wrong with this reasoning?