Clever Drippers are made with Eastman Triton BPA free plastic so you're getting a sturdy and durable brewer with a delightful new ergonomic handle. The shutoff valve has been redesigned to make cleaning an easier process, the seal is much more easily removable and the entire coffee dropping mechanism is now much improved. The Clever Dripper provides all the wonderful flavour of full immersion brewing mixed with the filtration of pour-over brewing.  The main chamber allows you to immerse the grounds for as long as you like and then once you pop the brewer on top of a mug the clever mechanism will allow the coffee to pass through a paper filter into the mug without any sediment.