Wash and slice your lemons into 1/4 inch (6 mm) slices.
Mix equal parts lemon juice and water and submerge the sliced lemons. This helps keep the lemons looking better for longer.
Place the sliced lemons onto dehydrator trays and dehydrate between 95-135°F (35-57°C) for 18-36 hours. (Dehydrating your lemons at a lower temperature will maintain the color as lemons like to brown during the dehydration process. The flavor profile is still very similar depending on which route you decide to take.)
Once your lemons are completely dry and slightly pliable, store in an airtight container with an oxygen absorber in a cool dark place.