All you need is a paper bag, a dehydrator or a microwave oven. Most herbs can be dried in the open air in a paper bag in a well ventilated area, said Oehler. Select herbs that are fresh, still green and tender. Lightly rinse the herbs before drying. The new leaves at the tip of the plant are usually the most flavorful.
Some herbs get a bitter taste after they flower and lose a lot of their flavor.
After washing the herbs, cut off the dead or discolored leaves or stems. They can then be tied together and hung up to dry. One of the simplest ways is tie all the stems together and suspend them upside down in a small brown paper bag or in old pantyhose. If the leaves and seeds drop from the stems they will be in the bag. A bag also keeps the dust, bugs and spiders out.