When using a Fruits dehydrator machine, there are some common mistakes to avoid to ensure optimal results. Firstly, avoid overcrowding the trays. Make sure to leave enough space between the fruit slices for proper airflow and even drying. Overcrowding can result in uneven drying and longer drying times.

Secondly, avoid slicing the fruits too thickly. Thicker slices will take longer to dry and may not dry evenly. Aim for slices that are uniform in thickness for the best results.

Another common mistake is not rotating the trays during the drying process. To ensure even drying, rotate the trays halfway through the drying time to allow all the fruit slices to dry evenly.

Lastly, avoid over-drying the fruits. Check the fruits regularly towards the end of the drying time to prevent them from becoming too dry and brittle. The fruits should be leathery and pliable, not crispy.

By avoiding these common mistakes, you can ensure that you get the best results when using a fruits dehydrator machine to dry fruits.