Why dont i have to wait for them to filter? I want to make sure the paracetamol doesn't get through as i use coffee filters if your referring to your 10 minute method with the cheese cloth im aware of that but i like to leave mine 30 minutes atleast to ensure i dissolve every little thing even then i start tapping the bottom of the cup to feel for any undisolved splotches and to crush the tiny little solids at the bottom then i will filter but over all a standard cwe for me takes a while i just put some warm water in and leave the cup somewhere for half hour come back and finish it off its probably not the most perfect time efficent cwe but it gets the job done