Use your oven
The first thing you can try to dehydrate food naturally is the oven in your kitchen. Thoroughly wash and dry the fruits or vegetables you want to dehydrate. Slice the raw foods, if necessary, and set them on a non-stick oven-proof dish in a single layer. Set your oven to the lowest possible temperature and place the dish containing raw food in the oven, keeping the door open. The timing will be different for different foods, but keep flipping the food occasionally until you achieve the desired results.
Use a mini toaster oven
If you have a mini toaster oven with you, try using it to dehydrate your raw food. Place the food that you want to dehydrate on the toaster plate and set the oven to the lowest possible setting, keeping the door open. To avoid water condensation, keep the fan on. This will also speed up the dehydration process and ensure your food does not get soggy. Keep checking the food occasionally to keep it from burning.
If you live in a warm climate that enjoys extended sunny days, sun drying is the process you can use to naturally dehydrate your raw foods. Ideal temperature for dehydrating raw food is between 112 to 120 degrees Fahrenheit; however, the sun may get hotter than the recommended temperature. So keep flipping the food frequently to make sure your food is dehydrated and not deep fried.