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.
It is important to remember that 350 degrees F is a baking and cooking heat, not necessarily a temperature that is ideal for reheating. In order to get precooked food hot again by placing it in a 350 degree oven, the food would have to stay in that oven for 20 minutes or more. The problem with that time frame is that the food is not really reheating, but cooking once again.