Early escalators had stairs made of wood â which happens to burn, unfortunately. One of the most notorious escalator accidents in history occurred on November 18th, 1987, when a fire fanned by drafts in Londonâs Underground subway network killed 31 people.
Preheat your oven to 475 degrees F. Move your bottom round to a roasting pan, and place a meat thermometer into the thickest part of the beef. Step 3. Roast your bottom round at 475 degrees F for 30 minutes. Then, reduce the heat to 350 degrees F and continue roasting. Monitor the meat thermometer for your desired cooking level. Anything below an internal temperature of 130 degrees F is rare. Do not roast to an internal temperature of more than 140 degrees F or your roast will be medium, not medium rare.
Cook all raw beef steaks and roasts to a minimum internal temperature of 145 Â°F (62.8 Â°C) as measured with a food thermometer before removing meat from the heat source. For safety and quality, allow meat to rest for at least three minutes before carving or consuming. To defrost beef in cold water, do not remove packaging. 2  Be sure the package is airtight or put it into a leakproof bag. 3  Submerge the beef in cold water, changing the water every 30 minutes so that it continues to thaw. 4  Small packages of beef may defrost in an hour or less; a 3- to 4-pound roast may take 2 to 3 hours.