PART 1: This item is the number one, best ever, fantabulous item my wife has ever purchased for our kitchen. I am an iced tea lover since grade school, and this Flask is the best ever at producing cold brew iced tea. It’s also very good to use with the hot brewing method but cold brew is definitely where it’s at!! I love that all I have to do is place an appropriate amount of one of my fav New Mexico Tea Co. blends, fill it with fresh cold water and place in our refrigerator. It’s beautiful to watch the leaves move up and down, top to bottom….reminds me of looking at a cool 60’s era lava lamp.