[planteen]

> Can you quickly preserve the food in your fridge/freezer without electricity?

What do you even mean by this?

"The power is out kids! Start a bonfire in the front yard, we're making pemmican and jerky!"

In all seriousness, I've been through a number of multi-day power outages. You leave the door to your fridge/freezer shut as much as possible. When you open it, you make it infrequent and fast. They are well insulated, things stay cold for a long time.