I tried a no name brand of tea bags..
No brew just hung six small bags in a half gallon glass container and threw it in the fridge for 2 hours
Unsweetened of course and it came out looking like apple juice and it actually had that very subdued flavor....no bitterness...if anybody wants to see the box I'll take a picture.
I grabbed it at the grocery store because I was getting some bad teas.. Actually tastes like McDonald's tea which I like.