Judging your roast’s degree of doneness using a meat thermometer. The internal temperature of the meat will be: Rare – 55-60ºC, Medium – 65-70ºC, Well done – 75ºC. You can also use tongs to test the roast’s doneness. Gently prod or squeeze the roast – rare is very soft, medium rare is soft, medium is springy but soft, medium well is firm and well done is very firm.