
Equipment
Vacuum dryer
Vacuum dryers remove food moisture under reduced pressure, allowing evaporation at lower temperatures. Shelf, belt and drum designs handle different feeds; ordinary vacuum drying is distinct from freeze-drying.
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Vacuum dryers remove food moisture under reduced pressure, allowing evaporation at lower temperatures. Shelf, belt and drum designs handle different feeds; ordinary vacuum drying is distinct from freeze-drying.

A pitted stone is a percussive artifact with one or more impact depressions. At Gesher Benot Ya‘aqov, nut cracking is a supported but not specimen-by-specimen proven interpretation; newer residue work confirms broader plant-food processing.

Three Natufian stone mortars at Raqefet Cave, Mount Carmel, include two portable boulder forms and a hollow cut into the cave bedrock.
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