Did You Know That ... Opening the Doors of a Truck with Frozen Goods may lead to an Air Temperature Increase of 24 degrees within 2 Minutes ?
Source: (Tso, C. P., Yu, S. C. M., Poh, H. J., & Jolly, P. G. (2002). Experimental study on the heat and mass transfer characteristics in a refrigerated truck. International Journal of Refrigeration, 25(3), 340-350)