1 Having high or low cholesterol does not exclude a person from donating blood. 2  Potential blood donors may be temporarily prevented from donating if they have a low level of iron (hematocrit) in their blood.
Headline Clickable. To keep food warm without overcooking, set your oven to the lowest temperature (which is probably 200 degrees F) and cover the food with foil.eadline Clickable. To keep food warm without overcooking, set your oven to the lowest temperature (which is probably 200 degrees F) and cover the food with foil.
425 degrees is a hot oven, so be careful! It will take about 20 minutes to preheat your oven to this temperature. Many ovens have several different setting like âbakeâ or âbroilâ or âpreheatâ or âself cleanâ (if you are lucky!) to name just a few. For roasting potatoes be sure the cooking mode is set for âbakeâ.