If hot air goes up and cold air goes down, why does a horizontal freezer loses cold when opened?

Question

If hot air goes up and cold air goes down, why does a horizontal freezer loses cold when opened?

In: 1

Answer 1

Chest freezer are way more efficient than “upright” freezers for the exact reason you stated. However due the properties of air when the door is opened it creates a difference in pressure around it that mixes the air in the freezer with the outside air.