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.
Medium oven: A âmedium ovenâ means an oven heated to 180Â°C. This is a good baseline temperature for everything from cakes to pasta bakes to apple pies. If youâre not sure what temperature you need or how long to cook it for, set it to 180 and keep an eye on it.