I would love to hear about the the dehydration process I do have a regualar dehydrater, but it's never came out of the box.
To maintain the flavor of mushrooms when drying it's best not to use heat. The preferred method is to use a large sealed plastic container, Tupperware or some knockoff there of. Airtight in any case. It mist be large enough to hold a screen or mesh container an inch or two above the bottom. The bottom of the container is filled with "Damp Rid" a moisture control product available at all Home Depot or Lowe's stores. The
mushrooms must NOT touch the Damp Rid, but are suspended above it on the screen. The lid should be sealed airtight on the container. In a day or two all the moisture in the mushrooms will have been drawn off by the drying agent. They will be dry and "woody" to the touch. They can then be stored in sealed jars or containers almost indefinitely.
Jimbo