How long can sealed milk last with the power out?

Sealed milk can typically last for about 1-2 hours at room temperature after a power outage, especially if it remains unopened. If kept in a cooler with ice packs, it may last longer, up to 24 hours. However, it's essential to check for signs of spoilage, such as changes in smell or texture, before consuming. Always prioritize safety and discard any perishable items that have been above 40°F (4°C) for more than two hours.