Wash the berries under cold water to remove any dirt or debris. I like to place them in a bowl with cool water, and add some vinegar. Let them soak for about 5 minutes or so. Drain and rinse with cold running water.
Use a clean towel to pat the berries dry or lay them out on a towel and allow to air dry completely.
Remove the green leafy top from the berries. This can be done by using a sharp knife or simply pulling the stems off with your fingers.
Using a sharp knife, slice strawberries in uniform slices roughly 1/8 inch thick. Cutting them too thin will leave you with strawberries that are hard to remove from the dehydrator.
Next, arrange the fruit slices on your dehydrator trays, making sure to space them out evenly. For best results, avoid overcrowding. As this can lead to uneven dehydration and spoilage.
Set the dehydrator to the appropriate temperature to 135 degrees F and timer settings to 6 hours, and let it do its job.. Depending on the temperature and humidity in your environment, it may take anywhere from 6 to 12 hours to fully dehydrate the strawberries. Total time is determined by the temperature and thickness of the slices. Thicker slices will take longer.
Once the strawberries are fully dried, carefully remove them from the trays and store them in an airtight container. This will help to preserve their freshness and prevent them from absorbing any moisture from the surrounding air.