Abstract: A frozen fish product is prepared by sawing pieces of frozen fish to produce smaller pieces of frozen fish and which also produces sawdust. The sawdust is collected and pumped under a pressure of at least 30 bars and sprayed onto the surface of the smaller pieces of frozen fish.

Abstract: The present invention relates to a hollowing machine for vegetables and fruits comprising a frame (1) with a lower table (2), a central table (3), an upper table (4) and outermost a step-by-step pivoting table (7), placed above the upper table. The pivoting table is provided with recesses or pockets for keeping a vegetable or fruit, e.g. a head of cauliflower. The machine comprises a supporting device (103) and a holding device (104) for centering and holding the head of cauliflower in the correct position. Below the outer pivoting table (7) and the upper table (4), centered under one of the recesses, a device of the iris diaphragm (83) type is arranged and straight under this diaphragm a knife head (46) and control devices (107, 36) for controlling the up- and downward movements of the knife head are arranged. The knife head comprises i.a.