Step 1) Use good quality loose-leaf tea!
Step 2) Use a strainer and your favorite cup, whatever fits with the strainer.
Step 3) Use filtered water or high quality well water (tap water can alter the smell and taste).
Step 4) Use the correct temperature and length of time to brew your tea:
Green tea- 170-180° F for 1-2 minutes
Oolong tea- 190-205°F for 2-3 minutes
Black and Scented teas- 205-210°F for 3-5 minutes