Method and device for increasing the proportion of meat used in fish, poultry or other meat products

The invention relates to a method used in the production of principal products conveyed in plurality along a processing line and consisting of fish, poultry or other meat which contains, in addition to the principal products to be obtained, inedible components to be removed (removal components) and also contains edible by-products remaining on said removal components, the edible by-products remaining on the removal components when the removal components are removed from the principal products, said method comprising the following steps: a) loading a separating device with a batch of fish, poultry or other meat; b) separating the principal products of this batch from the removal components, comprising by-products, of said batch; c) separation of the by-products from the removal components; d) producing a by-product brine from the by-products by comminuting the by-products and mixing same with water, stabiliser, optionally sodium chloride and optionally other components; e) injecting a defined quantity of the by-product brine produced in step d) into the principal products, wherein principal products and the by-products contained in the by-product brine come from the same batch. The proportion of meat used is increased by this method, thereby conserving resources.