To be honest I lack the time and video equipment to do a tutorial but really if you read through the site I posted you'll know as much as I do. The excalibur is a great machine, I have the 5 tray model and to be honest it's big enough to dry huge amounts of food. The 9 tray model may well be overkill unless you're supplying large numbers of people in my opinion. It's a bulky thing to store too. If I fill all 5 trays I find that after a couple of hours the food has reduced in bulk enough for me to fit it all on 2 trays for the remainder of the drying time, freeing up 3 trays to start a new batch. Being square the trays take a lot more than round dehydrators, I was surprised at how much more it'll take.