But don't get discouraged. Excalibur is waiting to show you the real possibilities with a serious machine radically different then the one described below. On most round stackable dehydrators normal drips fall on the electrical controls beneath the food. This can cause electrical problems as well as being very difficult to clean. The more trays that are added, the further the food is away from the heat, dramatically increasing the drying time, and requiring frequent tray rotation day and night to prevent spoilage.
Air enters the bottom and is warmed up by the heating element.
If not rotated, the food will spoil. Temperature from bottom to top can vary as much as 50 degrees. They have a hole down the center with stackable trays. These severe limitations prevent drying large items such as sizable photographic prints, massive slices of meat, making large pans of yogurt, and drying whole foods such as peppers, plums, peach halves, and small pears. The Excalibur is versatile Excalibur permits removal of drying trays like an oven.