There is one common goal between food dehydrators, and that is to remove the water from your food in an efficient manner without inhibiting the nutritional content. In order to do this, the dehydrator must distribute an even airflow and maintain a constant temperature across all trays.1. Stacking Trays Can Have Greater CapacityThere are two common types of dehydrators. The first is the stacking one, which contains trays that stack on top of each other, and includes a fan that is either mounted in a power unit or in the base. There is a core channel in between the trays for air to filter through. This also allows for the heated air to flow through the outside walls and across the tray so it can exit the machine through the channel. Because of this process, there is no need to rotate the trays. With the ability to stack or remove trays, the This link (www.gf-machine.com) is not approved. Submit this link for approval can accommodate large or small batches.2. Shelves Can Make it Easier to Check for DonenessThe second type is the shelf dehydrator. Rather than just trays, it has shelf-type trays that slide in and out. This creates a different system of airflow as the fan is mounted in the back of the unit, which blows the air from the back towards the front in a horizontal direction. This process can create a more even dry, so the trays should not need to be rotated. This is also ideal for when you need to slide out the trays to check the doneness of the produce. …the next moment changed everything