Totally depends on a few variables. How large the mushrooms are, and what temperature your dehydrator is set to... I run mine 24hrs at a minimum on 145 degrees. If I have really large/fat mush I might double that time... you want to be able to bend a stem and have it snap like a dry saltine cracker.... View MoreTotally depends on a few variables. How large the mushrooms are, and what temperature your dehydrator is set to... I run mine 24hrs at a minimum on 145 degrees. If I have really large/fat mush I might double that time... you want to be able to bend a stem and have it snap like a dry saltine cracker...
Always best to over dry them than to under dry them.