If frozen pork is left out for 12 to 15 hours it still OK cook?

1. Bacterial Growth: Frozen pork is safe because the low temperatures inhibit the growth of microorganisms. However, when pork is left at room temperature for extended periods, bacteria can start to multiply rapidly, potentially causing foodborne illnesses.

2. Temperature Danger Zone: The "danger zone" for bacterial growth is between 40°F (4°C) and 140°F (60°C). Pork left out for 12 to 15 hours is likely to have spent a considerable amount of time within this temperature range, increasing the chances of bacterial proliferation.

3. USDA Guidelines: According to the United States Department of Agriculture (USDA), frozen meat should be thawed in one of three ways:

- In the refrigerator

- In cold water

- In a microwave oven

Leaving meat at room temperature for more than two hours is generally not recommended to ensure food safety.

4. Pork Spoilage: Aside from bacterial growth, prolonged exposure to room temperature can cause pork to spoil and develop unpleasant odors, flavors, and textures, compromising its quality.

5. Foodborne Illness: Consuming pork that has been improperly thawed or left out for extended periods can lead to food poisoning, causing symptoms such as vomiting, diarrhea, abdominal cramps, and fever.

To ensure food safety, it's best to follow recommended thawing methods and avoid leaving frozen pork out at room temperature for more than two hours. Frozen pork should be thawed gradually in the refrigerator, under cold running water, or in the microwave using the defrost setting.