A return liquid containing particles resulting from treating food is treated to reduce the size of the particles and recycled for further food treatment. Embodiments include injecting a solution into a body of meat, recovering a return solution containing particulate material resulting from injecting the body of meat, optionally reducing the temperature of the return solution, mechanically reducing the particle size of the particulate material in the return solution to form a reduced return solution, conveying the reduced return solution to a holding tank and recycling the reduced return solution for injection into a body of meat. Embodiments also include a system for recycling a food treating liquid including a mechanical milling device, an optional chilling device, and a holding tank including first, second and third sections, a first weir separating the first and second sections, and a second weir separating the second and third sections, wherein the second weir extends higher than the first weir.