When you open a fridge or a freezer and then close it again, why does it become harder to open again right after?

Question

When you open a fridge or a freezer and then close it again, why does it become harder to open again right after?

In: 4090

Answer 1

I think the other hot air becoming cold answers might only be part of it.
An additional factor is when you close the fridge the force of closing it compresses the rubber seal around the door and forces some “extra” air out. So the fridge is turned into a slight vacuum until air can leak in and equalizer it.
Not sure what factor is contributing more to the effect.