It's generally safe to feed your cat canned food that has been left out overnight, but only if it was properly sealed and refrigerated. Otherwise, the food can easily spoil. How long opened cat food lasts depends on the ambient temperature. If refrigerated, it can last about 2 days; in high temperatures, it might spoil in just half a day.
Cat food cans can indeed be kept overnight. However, it's crucial to consider the surrounding temperature. In warmer conditions, it's best to cover the opened can with plastic wrap and store it in the refrigerator to prevent spoilage, which could lead to diarrhea in your cat. If the surrounding temperature is low, consume it as quickly as possible the next day, and don't leave it out until the third day. Ideally, opened cat food should be consumed immediately.
How Long Can Opened Cat Food Be Left Out?
1. If left exposed to air without any preservation methods, it can last a day or two in winter, but in summer, it may spoil in as little as half a day.
2. If refrigerated and with the can lid on, it can last 2 to 3 days. However, it's best to use it as soon as possible after opening for the best flavor.