Say goodbye to lukewarm, flavourless tea! This borosilicate glass flask is designed to deliver a consistently perfect cup, wherever you are. Experience the pleasure of loose-leaf tea on the go, with a flask that keeps your brew toasty and your experience seamless. Specification Borosilicate glass construction for optimal temperature retention. 300ml (10 fl oz) capacity for a satisfying tea experience. Stainless-steel infuser ensures a clean, leaf-free brew. Flask remains comfortably warm to the touch, not scalding. Optimal sipping temperature maintained for 30-60 minutes. Personally, I have found this to be true, and really enjoy the consistent temperature. How to Use Remove lid and stainless-steel infuser basket. Add 1 heaped teaspoon of loose-leaf tea to the infuser. Fill flask with hot water (temperature as recommended on tea packaging) to approximately 2cm/1 inch from the top. Slowly lower the infuser basket into the water until it clips into place. Infuse for the tea’s recommended time. Carefully remove the infuser using the handle and allow it to vent for one minute. Dimensions 7cm (width) x 19.5cm (height) x 7cm (depth).