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.
Preheat oven to 500ÂºF. Season roast generously with salt and pepper. Create a rack, by placing roast bone-side down in pan. Place beef in oven and roast 15 minutes.Turn heat down to 325ÂºF and continue roasting about 2 hours for medium (when thermometer placed in center of roast registers 140ÂºF before resting) or until desired doneness.Because roast sizes vary, figure 12-15 minutes of roasting time per pound after initial sear.nstructions: 1  Preheat oven to 500ÂºF. Season roast generously with salt and pepper. 2  Place beef in oven and roast 15 minutes. 3  Transfer roast to cutting board; loosely tent with foil and let stand 15 to 20 minutes.