Consume ice at a fixed frequency to achieve the function of keeping fresh.

possible, I can make it an earlier game product Insulation box that only when you have ice and item in it it will slows the spoil rate. and it will remove ice in it at some rate, so the ice in the fridge will become less and less. but then it will need some adjustment on the tech tree. currently am unlocking fridge as soon as we unlock the agriculture science pack. but if we need to add that. then we should unlock the Insulation box at that time and then move the fridge to later technology. let me know what you think to adjust this.
and also, the graphics for Insulation box is a problem. I don't have any idea on how to make game graphics. so also let me know if you have any ideas.

My idea is to copy a set of heat insulation boxes according to logistics box. In this way, the ice cubes in the logistics network can be directly requested without manual addition.

I thought about it, and think although it is a quiet funny idea, But it would be a little bit duplicate with the current one. I don't want to add a logistic version cause it would break the balance too much. And based on that, if adding it in the early game, we will need transport ice to each planet and put them in the container our self. This conflicts with the idea of why I creating this mod, I just want go get a good and easy way to store my agriculture science pack. And if I add the logistic version, it would be not too much difference with the second tier little fridge. So I decide to not add this function to this mod, even it is a good idea. let me know what do you think. <3

Yes, I agree with you.