Mur's Question:
Where can I find dehydrated foods not found at the supermarket?

Murray NolanDorcas' Answer:
Look for a wide range of dried ingredients, both exotic and more ordinary, at Asian food stores, health food stores, baking supply companies, and outdoor food companies. Three companies, in particular, have a lot to offer -- check out their web catalogs to find out what else is available:
Adventure Foods
AlpineAire
The Baker's Catalog
When comparing prices, remember to factor in shipping.
If you're looking for particular ingredients, use this handy key to figure out which of the three companies has what you're looking for:
Beans, dried (lentils, pintos, navy, kidney, black): AF (Adventue Foods), AA (AlpineAire)
Butter powder: AF, AA, TBC
Cheese powder
cheddar: AF, AA, TBC
blue cheese: TBC
cream cheese: AF
Coconut cream powder: Asian food stores
Egg powder: AF
Honey granules: AF
Fruit, dried: AF, AA, TBC
Lemon juice powder: AF
Maple syrup granules: AF, AA
Molasses granules: AF
Salsa, dried: AF
Shortening, powdered vegetable: AF
Sour cream powder: AF, AA, TBC
Soy sauce powder: AF
Tomato powder: AF, AA
Vanilla powder: AF, TBC
Vegetables, dried: including bell pepper, cabbage, carrots, celery, green beans, mushrooms, onions, potatoes, spinach flakes, tomato flakes, tomato powder, and vegetable mix: AF (many items), AA (many items), TBC (more limited number of items)
Worcestershire sauce powder: AF