Apr 1, 2021 There's nothing worse than cold, soggy fries. Check thisout. An ex-Mcdonald's employee has gifted us with the following tactics to help keep our fries fresh! Keep the bag open. The steam being trapped in the bag increases the chances of your fries getting soggy. Tilt the fry boxes on their side, but don't lose them! This keeps the heat evenly distributed. Lastly (and this seems dangerous), put the fries at the bottom of the bag and let the burgers keep them warm