Sublime Pantry: Home Freeze-Drying, Batch by Batch

Field notes

The resource divides home freeze-drying into equipment decisions, repeatable batch steps, failure diagnosis, storage, and selling. Its examples include center-tray moisture problems, candy that melts or fails to puff, and rehydration that turns tough or mushy. The commercial section adds a 0.85 water-activity reference, sub-$100 testing, labeling, and a worked cost model, while the machine comparison frames equipment choices in the $1,700–$5,000 range.