[blensor]

Does it make much of a difference if you keep it open for 20 seconds or 2 minutes?

I imagine that as soon as most of the cool air has flowed out of it (which should happen quite quickly), the additional energy loss is minimal

There are compromise versions where there is a small door at half height in the big door, through which you can get the bottles/milk crates out of the side of the door.

What I am wondering is if there is a way to solve this with at technical solution that keeps the current standup design but makes it energy efficient.

For example: An opening at the bottom of the door that sucks cold air in when the door opens and transports it to the top back of the compartment. While open, most of the cold air would be saved and it's only a ventilator that's running for a few seconds