Metal tea strainer with lid 
 
Using a tea strainer with a lid while your tea is steeping helps to keep the essential oils that are released while brewing end up in your drink instead of floating away in the steam. After using a tea strainer with a lid, peak at your tea before sipping and note the oils floating on the top of your tea- supper medicinal those ones! 
 
The lid doubles as a holder for the strainer when you take the strainer out of your cup or mug.