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.
Bread heated in a toaster oven comes up wonderfully warm. You can cook it long enough to be crispy on the outside, yet soft and warm on the inside. Or, you can cook it just long enough to be warm but not crispy. Microwaves are terrible for heating up bread.read heated in a toaster oven comes up wonderfully warm. You can cook it long enough to be crispy on the outside, yet soft and warm on the inside. Or, you can cook it just long enough to be warm but not crispy. Microwaves are terrible for heating up bread.