If I leave milk in the car for 4 hours can still drink it?

No, it is not safe to drink milk that has been left in the car for 4 hours. Milk is a perishable food and can quickly become spoiled when left at room temperature. Bacteria can grow rapidly in milk, especially in warm conditions, and can cause it to become unsafe to drink. Drinking spoiled milk can cause foodborne illness, which can lead to symptoms such as nausea, vomiting, diarrhea, and abdominal pain. It is best to discard any milk that has been left out at room temperature for more than 2 hours to ensure your safety.