A substance added to food to maintain or impart a certain consistency , to improve or maintain nutritive value , to enhance palatability or flavor , to produce a light texture , or to control pH . Food additives are used to help bread rise during baking , to keep bread mold-free , to color margarine , to prevent discoloration of some fruits , and to ...
Speed cooking time by setting your Crock-Pot to high and cooking a sirloin tip roast for four to five hours. This may result in a less-tender roast, however, because the combination of low cooking temperatures and time produces a more tender roast. Kitchen knife.
1 Heat the oil or beef fat on your stovetop over medium heat in a large, flameproof roasting pan for five to 10 minutes [source: Rhodes 2  ]. Place the sirloin in the heated oil on the stove and let it sizzle for about five minutes, turning regularly [source: Rhodes ]. Put the sirloin in the oven and roast it for about 15 minutes for a medium-rare roast, 20 minutes for a medium roast, 25 minutes for a medium-well-done roast or 30 minutes for a well-done roast. 2  Turn the beef over about halfway through cooking [source: Rhodes ].