All of our herbs are cut fresh, soaked in water and 5% vinegar for 15 minutes and then rinsed. After this, the drying process begins. We use hanging mesh herb dryers for air dried herbs and occasionally a dehydrator for herbs with more water content such as basil and cilantro. Dried herbs will typically last 1-3 years. The quality and flavor will slowly degrade over time. To ensure long lasting herbs, please store your dried herbs in an air tight container and in a cool, dark, dry place.