Whatâs the difference between fat soluble and water soluble vitamins, and what is its significance for people with cystic fibrosis? Water soluble (Vitamin C and all of the B vitamins): Water soluble vitamins are vitamins that our bodies do not store. These vitamins dissolve in water when they are ingested, then go in to the blood stream.
How long and at what temperature should I cook a beef roast in the oven? Roasting is a great cooking method for a large, tender cut of beef  such as a rib or sirloin roast.Sirloin-tip, rump, rolled-rump, eye-of-round or top-round roasts will also benefit from this cooking method if they are graded prime or choice.ooking at a constant oven temperature of 300Â°F (160Â°C), a 5- to 8-lb standing rib roast will take 17-19 minutes per pound for rare, 20-22 for medium rare, 23-25 minutes for medium, and 27-30 minutes for well done.
1 Roast beef for 5 minutes per pound. 2  Then turn off oven. 3  DO NOT OPEN OVEN FOR 2 HOURS! (For example, a 4-lb. roast would take 20 minutes to cook and then sit in the turned-off oven for 2 hours.). Preheat oven to 500 degrees. 2  If desired, trim off excess fat from roast beef. 3  Season with salt and pepper (and paprika, if desired). 4  Rub meat with vegetable oil. 5  Place meat in roasting pan in preheated oven. 6  Roast beef for 5 minutes per pound.