When cleaning fungi, use a damp paper towel or dishcloth to wipe away debris from the cap, stem, and pore surface. Remove any insects, and look between the gills to check for bugs and grime in those hard-to-reach areas.
Add your mushroom slices to the marinade and toss, ensuring each piece gets a nice coating. The marinade doesn’t have to cover the fungi completely, but there should be a substantial amount of liquid in the container.
Hold them over a bowl and let the marinade drip off for a moment or two. Afterward, put them straight on the racks, arranging them a few centimeters apart. Turn your dehydrator to 125° F and leave the mushrooms to dehydrate for four hours.