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.
Was hoping for longer, though! I make and consume iced tea all summer long and try to make the amount we will consume in about 3 or 4 days. Beyond that time it starts to taste stale. If you keep the tea refrigerated the 3 - 4 days sounds right. I have had iced tea served to me in restaurants that has the off taste of mold. I assume that means it's not kept in the fridge and/or kept too long.