As you drink tea for years and thought you already tried everything. Apart from tea bags had been a tea maker, tea infusers, various screens, special teacups or similar filters. The tea making filthy too fast and there were still residues in tea. The tea infusers made dirt, were fiddly and leftovers were in the tea. A sieve made of plastic, the one hanging on the edge of the cup, had large holes and the plastic ripped, ie However residues in tea. My teacup has a ceramic filter - residues in tea. This filter, however, fit into all my cups and there are absolutely no residues in tea, the bitter tea after a certain time or that could be swallowed. For years, tea drinking was in some ways always associated with stress - that is now history. In short: buy, recommended!
Addendum: Meanwhile, I no longer use the sieve. I drink a special tea mix from currently 6 herbs - has medical reasons. At least with my herbs there is now the problem that the metal of the screen with some active ingredients forms a bond and this eliminated, so to speak. In this respect, I am again landed in a new plastic filter. Who now black or other tea drinks for pleasure, which can use the screen without any problems. If you want to detoxify now with certain green teas or certain organs would assist with corresponding herbs, which should be for then to take superior plastic or paper.