This high quality borosilicate glass bottle is perfect for loose leaf teas. Wash this bottle infuser before you use it first. Double glass will protect your hands from getting hot. It has three pieces. Infuser piece has to be screwed well from both sides. Boil water to 80-90 degrees & fill up the bigger glass piece. Leave some room as you want the heat to circulate well without causing a leak. Tea leaves go into a smaller glass piece. Screw the smaller glass piece to the infuser sleeve & then screw it to the larger glass piece. Turn the bottle upside down & wait until your tea is done brewing. When it’s ready turn the bottle back up & unscrew the smaller glass piece with an infuser. This bottle is perfect to be taken outside. Imagine you are in a rush to leave your house & all you need to do is to pour hot water over your tea & you are ready to go. This piece is very sustanable & high quality & leak proof. Enjoy your tea even more with this beautiful piece! The Capasity of the bottle is about 230ml High Quality Borosilicate Glass Tea Bottle Infuser Silver Loose Leaf