Hario Fiter-in Cold Brew Bottle is a new way of making tasty and refreshing tea. It’s specialty is that we brew the tea leaves on cold water. Just fill the filter with your favourite tea leaves, fill it with cold water and place it in the fridge. This brewing method provides a smooth and rich taste, without the bitterness. The filter found at the top of the bottle keeps in your leaves. Perfect for making flavoured water – just use your favourite fruits instead of tea leaves.