To dry kale, start by washing and thoroughly drying your kale leaves. Lay the leaves on your dehydrator trays in a single layer.
The key to dehydrating kale in the oven is to use the lowest temperature possible (or 125 degrees Fahrenheit, if yours goes that low).
To air dry kale, tie together bunches of 3-4 stems. Hand the stems in a place where there is good air flow and low humidity.
Once your kale is completely dry, place it in an air tight, glass container.