The present disclosure includes various method, device, and system embodiments for meat processing. One such method embodiment includes obtaining animal data for an animal selected to have a solution introduced into its circulatory system in a rinsing process and determining an insertion location based on the animal data. This method embodiment also includes establishing a fluid conduit from a reservoir through the insertion location into the circulatory system of the selected animal by inserting a cannula in fluid communication with the reservoir through the insertion location. The method further includes activating flow of a solution from the reservoir through the fluid conduit to introduce the solution into the circulatory system of the animal.