The molecules of which foods are made are too large to pass through the lining of the digestive system. Digestion results in the formation of smaller molecules that are able to pass through that lining and enter the person's bloodstream. (for example,) Sugar molecules formed by the digestion of starch enter the bloodstream.
Either way, not worth the risk - you can get very ill from consuming or drinking expired products, including ice tea. Now if it is a best before date, that tells us something else. It says it has not turned or gone bad, but that it may not taste very fresh after the date on the bottle. There is a huge difference between the comments expired and best before - so please use caution and consider these points. For dry ice tea mix, you usually see a best before date.
Cold brewed iced tea can be infused with herbs and fruits like mint, raspberries or cucumber. You can also use it to make Arnold Palmersâ¦ so delicious! Just measure out 1 tablespoon loose leaf tea for every 24 ounces of water (more if you like your tea extra strong, or want to save time). Allow it to sit in your fridge, covered, for up to 10 hours. I like to do it while I'm sleeping, overnight. Remove the tea leaves from your pitcher and enjoy your brew.