I got to thinking after the disgusting job of separating globs of fat from sous vide short ribs and debating never doing them that way again. If the fat renders out in a braise, but not in the sous vide, what temperature would you need to turn the fat liquid to get rid of it? Is it below well-done or do you really have to cook the shit out of it? Is it just temperature or a time&temperature thing?
Along those lines, what happens with marbled, tender cuts? where is the sweet spot between solid fat and something more palatable?