The toxins produced by bacteria prior to cooking are the cause of food poisoning, so storing meat at the correct temperature is the vital factor in food safety. If the meat has been properly stored, it is safe to leave it rare in the center. However, if the meat has been pierced or cut in any way, and in particularly if it has been boned and rolled, bacteria will have been able to enter the meat, so it should be always well cooked right through.
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Asian Recipes **