167 Coole endiffe, radish, new egs rosted reare, And late-prest cheese; which earthen dishes beare. Ovid Baucis & Philemon in Fables 159 New-laid Eggs, which Baucis busie Care Turn'd by a gentle Fire, and roasted rear. Recipes for hours-long braising or stewing were developed for mature animals with substantially cross-linked collagen that took a long time to dissolve into gelatin. Fat coats and lubricates meat fibers during cooking, and stimulates the flow of saliva and creates the sensation of juiciness no matter hwo dry the meat fibers themselves have become. Grilling, frying, and roasting are the usual fast methods.
The texture of raw meat is a kindk of slick, resistant mushiness.
The fluid release is at its maximum when the meat is only lightly cooked, or done 'rare.' As the temperature increases and the meat dries out, physical change gives way to chemical change, and to the development of armo as cell molecules break apart and recombine with each other to form new molecules that not only smell meaty, but also fruity and floral, nutty and grassy (esters, ketones, aldehydes)...
Oxford English Dictionary RARE Etymology: Originally a variant of rear adj.1 As a result of the lowering influence of r on preceding vowels in southern varieties of English, rear remained homophonous with rare adj.1 at least as late as the 17th cent. This gave rise to the variant rare, which retained the early modern pronunciation in standard English (compare the current pronunciation of e.g. (3)...rawer meats are conduucive to vigor but in fact rather poor for the digestion.' Because bloody meat was thought to increase one's vitality and zest, eating half-raw meat became intertwined with the goal of arousing the body at table." ---Acquired Taste: The French Origins of Modern Cooking, T.
The leading lights like eef wee cooked, though some of them nevertheless devour it bloody after the fashion on the Cyclops.
Late 19th century food scientists examined meat doneness, offering temperature/time recommendations according to type of meat, cut, and method of cooking. Meat thermometers (1930s) took the guesswork out of judging doneness. When today we ask for our steak well done, medium or rare, we are repeating a choice that the Renaissance writers revived from Hippocratic writings.