how to dehydrate celery
Here's How to Dehydrate Celery. 1  Bring a large pot of water to a boil. 2  Cut the celery stalks into thirds. 3  Slice the blanched celery into 1/2-inch thick crescents.  Arrange the celery pieces on the trays of a dehydrator, leaving 1/4-inch space on all sides between the pieces.