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.
The core temperature when the food is cooked should be at least 75 degrees celsius. The food should not cool to below 63 degrees celsius before it is served. If you are re â¦ heating the food it should be raised to at least 82 degrees celsius.old food should never be allowed to get warmer than 42 F 42-140 F is considered the danger zone for all hot and cold food. Cold food served below 42f and hot food above 140F â¦ .