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That medieval French cooks too this warning seriously and rarely roasted their beef is evident in the large stocks of beef bouillon that our recipes imply was always on hand for ready use in other preparations." ---Early French Cookery: Sources, History, Original Recipes and Modern Adaptations, D.
If the ignorant cook were to subject beef to a roasting, so further drying its already dry nature, this could be quite dangerous to the unfortunate person who was to eat it later, and could even put him or her at risk of an attack of melancholia or a bilous upset.
Medieval physicists--or physicians--told their contemporaries that cooking added either warmth and moisture or warmth and dryness to their foodstuff that was cooked: the cook chose his cooking method according to the inherent nature of the foodstuff and any need he had to correct this nature.
F j b, Poched egges are better than egges rosted hard or rere. 86-87) [Medieval France] "Modern physicists tell us that cooking changes the chemical characteristics of a substance.
This early reference notes this stage is unwholesome [Markam]. Medium/medium rare were introduced about this time. Originally only of eggs: slightly or imperfectly cooked, underdone. And indeed, among winged creatures they can eat with pleasure wood pigeons still running with blood and scarcely touched by fire.' Bruyerin advocated the middle way, warning that there would be a penalty to pay for eating either half-raw or 'melting' meat.