I give the tea generally only once in a larger glass jug (1,5Liter) and then pour it with boiling water and then will let a sufficient time depending on the tea variety - fruit teas sometimes over 10 minutes. Only in this way can it develop its full flavor of the tea. Then I pour into an Alfi thermos (= 1,5Liter). Now this tea filter is used - that which is not in the glass pot remains is collected by this fine filter. It remains a tea enjoyment without the slightest residue. I believe that the filters is also a handy tool. Of course, the not suitable for containing 10 tea spoon with fruit, which can swell when pour hot water loose on the 2-3 times. "True tea drinkers" let the tea draw the "freedom of movement" - just tastes more intense. I use any case the filter in conjunction with the 1.5-liter stainless steel pot Alfi for 1 year daily, grab the always with in the dishwasher and can (with proper handling) recommend the ...