How long can veleeta cheese dip with hamburger be left out of the refrigerator?

Velveeta cheese dip with hamburger should not be left out of the refrigerator for more than two hours, as bacteria can grow rapidly at room temperature. If the temperature is above 90°F (32°C), this time is reduced to just one hour. To ensure food safety, it's best to keep the dip refrigerated until ready to serve and to discard any leftovers that have been left out too long.