The clever silicone head of this wine bottle filters and strains your tea as you pour, giving you iced tea that is worthy of presentation straight from your fridge door.Cold water is the best way to brew iced tea, as no bitter tannins are released from the tea plant – leaving only a clean pure crisp infusion of tea.How to make your favourite Tea Tonic Cold Brew Tea:1). Place two heaped teaspoons of your favourite Tea Tonic Loose Leaf Tea into the glass bottle;2). Fill the glass bottle with tap or cold water up to the top measurement marking on the bottle;3). Check the filter is secure in the removable bottle spout, then press the bottle spout firmly on the top of the glass to seal;4). Let the tea brew on your desk or in the refrigerator for a minimum 40 minutes (it can be left in the refrigerator overnight for a nice strong brew); and5). Pour the tea into a glass and enjoy!This bottle comes in a protective cylindrical tube to make a perfect gift.Choice of lid colours includes red, green, blue, black, white or green.