Double walled polycarbonate outside w/glass inner travel mug w/infuser tumbler matcha shaker MATCHA: Just add 1gram (about ½ teaspoon) of matcha powder, hot or cold liquid of choice, shake, and go! Great with hot water, or milk of choice! Did you know: Hot liquid brings out bitterness in matcha, whereas cooler liquids bring out its sweetness.*** LEAF TEA: #1 – for leaf teas/fruits that can be re infused or do not go bitter: remove lid & filter add tea into glass carefully pour hot water into glass allow steam to clear, 1 – 2 minutes twist on filter & lid… you’re ready to go! *** #2 – for teas with limited steeping times remove lid & filter carefully pour hot water into glass allow steam to clear, 1 – 2 minutes twist on filter only place 1-2 tsp of tea on filter screen twist on lid carefully turn your libre upside down, steep to desired colour/flavour turn upright… ready to go! STEAM WARNING – Always Remember… trapped steam builds up pressure. Allow steam to dissipate before tightening lid. Use care when removing lid on hot teas.