it will depend on how good of a dehydrator you got...i have the 4 tray cheapo from wally world and if i load every tray using the jurkey gun it will take about 10 hours...i like mine more crisp then chewy....

i have even done jerky without all the other packages..grind up your meat and add what you want (garlic powder, spicy salt, soy souce, etc.) mix it up, let it sit and then use the gun to make your strips.....for your first time i would do it on a day where it can be watched for a while..just in case it takes longer then you thought...