Question: what is rare roast beef?
Answer: If you don't have a meat thermometer then check your beef is roasted by piercing it with a skewer. The juices should run red for rare, pink for medium and clear for well-done. Also, a meat thermometer should read 40C for rare (it will rise to 54-56C, medium-rare, as it sits), 48C for medium (it will rise to 65C).