We have been dehydrating our trek food for many years. Using a Fowlers Vacola. Excellent results if used correctly. My wife is a nutritionist, so we have a slight advantage
Our longest trek without food drops has been 13 days. All with our own dried meals. I also make protein bars, kangaroo jerky, and dried fruits and fruit leathers. A few tips:
- Cut everything VERY thin. We use a mandolin to cut all veges into matchsticks. For meats we only use mince. Kanga is best due to low fat content. Fatty meats can go rancid, even if completely dry. Small sizes are critical in keeping cooking time (and fuel) to a minimum.
- Precook everything!! All groups can be dehydrated after cooking. Steamed veges, cooked rice, cooked mince (on very hot BBQ plate gives a great flav). But no need to precook stuff like thin Thai egg noodles, or cuscous (cook very quickly in field). Precooking helps to stabilise the food, and speeds up the infield cooking time - no need to cook, just rehydrate (saves fuel).
- For any meal, keep your groups seperate, as cooking time varies. That way you dont end up with mush. eg mince, curry spices, veges, rice (precooked, dehydrated rice is ready in 1-2mins!).
- Limit cooking pots to 2. Heat water for carbs first (noodles, cuscous, rice), set aside covered then cook other ingredients.
Biggest tip of all - dont take anything into the field that you have prepared yourself without first trying it at home. A failed experiment can lead to disaster if the meal is not edible
And yes - experiment!!