This study delivers a less modern (than the 1986 report we mentioned yesterday) look at edible rendering. Edible rendering, again and still, the process(es) of rendering some of this uneaten edible stuff so that it becomes, again, edible. Bates, at Armour and Company in Chicago, writes about steam rendering, dry rendering, the Vio-Bin process, and ever so much more.
These images from his study (“Edible Rendering,” R.W. Bates, Journal of the American Oil Chemists’ Society, vol. 45, no. 8, August, 1968, pp. 420A-472A) give you a taste, so to speak.