Homestead Living, which puts out a lovely magazine, has recently published a book, Freeze Drying the Harvest, by Carolyn Thomas, for people interested in freeze drying at home. It's pretty comprehensive, with instructions for drying, storing, and using all sorts of foods and beverages? Want to make your own freeze-dried coffee? Don't laugh--it's in there! So are many fruits and vegetables, meats, seafood, even colostrum! Also tips on the size of machine to buy that fills your needs, how to set it up, how to maintain it, and a technical section of its power use.
[Disclosure: I copyedited it and wrote the index. But I have no further financial interest.]