Windhexe (German, literally: "wind witch") is a grinding and dehydrating apparatus operated with compressed air typically used in waste reduction and food processing.
The Windhexe was unveiled in 2002 and operates via compressed air injected into a conical chamber which tumbles material at high speeds causing simultaneous dehydration and disintegration.
The pressurized air is forced into a conical chamber where it forms a high speed vortex which tumbles material against the inside wall, pulverizing it into a fine powder while simultaneously dehydrating the finished product.
Windhexe is currently being used to process collagen powder from eggshells, creating a plentiful supply of the expensive protein that is used in cosmetics and medical procedures such as skin grafts.
The machine can take the remains from meat processing plants, trimmed waste and animal parts that are typically thrown away, and produce what Vortex Dehydration Technology calls highly nutritional “edible systems,” such as bouillon, powdered extracts and flavorings and dried soups.