Dehydrating mince

Tried Dehydrating mince for the first time. Panfried quite dry, with just a little garlic and a few herbs and then dried on high setting. Found that the mince took 10-12 hrs on the solid plastic sheet, the book recommended 6-8hrs but I found that the meat was not dry enough. Also found that the mince took a while to re-hydrate. Otherwise, the mince was very much nicer than the freeze dried stuff Iv'e been buying, more like the real thing, less powdery. Thanks for the tips corvus. I put two cans of diced tomatoes with the meat. It dried away to nothing but wondering if this is the best way (drying the tomatoes in with the mince (for the spagg sauce)))