Dehydrators can produce a quality dried herb in 1-3 hours. Be sure not to have the dehydrator too hot. It is best to dry herbs at 90-100 degrees. If dried at higher temperature it will dissipate the herb oils and lose flavor. Oehler does not recommend sun drying because the light will cause color changes and losses in aroma and flavor of the herbs.
Microwaves work great for drying small quantities of herbs in mere minutes.
Do not dry more than one to two cups at a time, she advised. Place the herbs between microwave-safe paper towels, and microwave on high for two to four minutes. Check to see if the leaves have dried. If not, reset the timer for a few more seconds. Let the herbs completely cool before packaging.