Is calf liver safe to cook after chilled for 12hrs?

It is generally not recommended to cook calf liver after it has been chilled for 12 hours. Although chilling foods can slow down bacterial growth, it does not eliminate bacteria entirely. After 12 hours, there is an increased risk of bacterial growth on the calf liver, which could lead to foodborne illness if consumed.

For food safety, it is best to cook calf liver within 2 days of purchase for optimal quality and freshness. When in doubt, always discard foods that have been refrigerated for an extended period or if you suspect spoilage.