It makes sense to measure the flexibilty rating with the racquet strung as it is obvious we cannot play with a racquet that is unstrung. Anyway flexibility rating of an unstrung racquet is only meaningful to the manufacture and pros.
Recommendations for Iced Tea Safety. * Iced tea sould be brewed at 195 F for 3-5 minutes. * Iced tea should be stored for no longer than 8 hours. * The tea brewer, storage dispenser, and faucet should be cleaned daily. The CDC stated that redesigning tea dispensers to be more easily dismantled and cleaned could further reduce the theoretical risk of bacterial contamination of iced tea. Sun Tea.
This is one reason that bottled tea that you buy at a store is not as healthy as freshly brewed iced tea. http://www.npr.org/blogs/health/2010/08/... I keep my sweet iced tea in the refrigerator enclosed in a lidded container for at least the third day. It still has its taste and smell! Try it! Another tip that I just recently discovered is to make ice cubes with the tea instead of water.